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The readability of three French scientific journals is examined using the Farr‐Jenkins‐Paterson simplification of the Flesch reading ease formula. The results show a relative decrease in readability with time. The results also suggest that these changes are due to changes in style or linguistic factors rather than subject characteristics.

Very much more might be done to improve the quality of our food supplies by the great organisations that exist for the avowed object of furthering the interests of traders in foodstuffs. It is no exaggeration to say that these organisations claim, and rightly claim, to speak in the aggregate on behalf of great commercial interests involving the means of livelihood of thousands of people and the most profitable disposal of millions of money. The information that they possess as to certain trade methods and requirements is necessarily unique. Apart from the commercial knowledge they possess, these organisations have funds at their command which enable them to obtain the best professional opinions on any subjects connected with the trades they represent. Their members are frequently to be found occupying positions of responsibility as the elected representatives of their fellow‐citizens on municipal councils and other public bodies, where the administration of the Food Laws and prosecutions under the Food and Drugs Acts are often under discussion. Such organisations, then, are in a position to afford an unlimited amount of valuable help by assisting to put down fraud in connection with our food supply. The dosing of foods with harmful drugs is, of course, only a part of a very much larger subject. It is, however, typical. Assuming the danger to public health that arises from the treatment of foods with harmful preservatives, the continued use of such substances cannot but be in the long run as harmful to the best interests of the traders as it is actually dangerous to public health. The trade organisations to which reference has been made might very well extend their sphere of usefulness by making it their business to seriously consider this and similar questions in the interests of public health, as well as in their own best interests. It is surely not open to doubt that a great organisation, numbering hundreds, and perhaps thousands of members, has such a membership because individual traders find it to their interest, as do people in all walks of life, to act more or less in common for the general advantage ; and, further, that it would not be to the benefit of individual members that their connection with the organisation should terminate owing to their own wrong‐doing. The executives of such trade organisations hold a sufficiently strong position to enable them to bring strong pressure to bear on those who are acting in a way that is contrary to the interests of the public generally, and of honest traders in particular, by adulterating or misbranding the food products that they gain their living by selling. It should also be plain that such trade organisations could go a long way towards solving many of the very vexed questions that arise whenever food standards and limits, for example, form the subject of discussion. These problems are not easy to deal with. The difficulties in connection with them are many and great; but such problems, however difficult of solution, are still not insoluble, and an important step towards their solution would be taken if co‐operation between those who are acting in the interests of hygienic science and those who are acting in the interests of trade could be brought about. If this could be accomplished the unedifying spectacle of alleged trade interests and the demands of public health being brought, as is so often the case, into sharp conflict, would be less frequent, and there can be no doubt that general benefit would result.

During a short two‐decade period (1879‐1903) processes for making food packages – paperboard cartons, tinplate cans and glass bottles – were mechanized by American inventor/entrepreneurs Robert Gair, Edwin Norton and Michael Owens, respectively. This paper aims to describe the context for packaged, processed food at the time, and to explore the men, their inventions, and the modern packaging industry that they collectively developed.

Biographies and patents were reviewed as well as contemporaneous and retrospective trade publications, newspapers, censuses and commentary.

Packaging's industrial revolution played a key role in the development of modern marketing. Mass‐produced cartons, cans and bottles collectively became building blocks for mass markets. By the time of the first supermarket in 1920, annual sales of packaged breakfast cereal, crackers, biscuits, canned fruits and vegetables, preserves, soft drinks and other prepared foods had increased by 60‐fold over 1880 levels, 80 percent of which occurred after 1910. The packaging companies of Gair, Norton and Owens capitalized on new methods of production and business integration (and collusion) to profit from the trend, and enabled emerging national brands like Nabisco, Campbell's Soup and Coca‐Cola to successfully lead a revolution in mass marketing.

This paper shows why and how the practically simultaneous invention of machines to make cartons, cans and bottles was able to accelerate the development of national brands and supermarkets. Inasmuch as the histories of the three packaging forms are not considered to be in the same “industry,” this research represents a fresh interpretation of secondary sources.

The shortage of grain, reflected by an increase in the rate of extraction in milling and then by the rationing of bread, has fully aroused the attention which it warrants. Avoidance of wastage, always important, now becomes imperative. In view of this, notes in connection with the occurrence of “rope” in bread which were recently made available to members of the baking industry by the Ministry of Food may be even more important than the warnings issued in previous years. The disease is associated with warm weather and develops most rapidly at about 100°F. The first of the symptoms is usually the development in the bread of a faint fruity odour, resembling that of an over‐ripe pineapple, which becomes more intense as the bread gets older. Discolouration and softening of the crumb next occurs, so that on attempting to cut the bread it tends to stick to the knife. When the crumb is pulled apart, fine gelatinous threads may be formed. Although an outbreak of “rope” is unpleasant, there is fortunately little or no evidence that such an occurrence is dangerous to health. The disease can of course occur in cakes and similar bakery products, but outbreaks are practically always confined to bread. The comparative immunity of cakes is probably due to a generally lower moisture content, which does not encourage development of the disease. Another possibility is that fruit, where present, may cause the development of a certain amount of acid, and acid conditions discourage the activity of the organism responsible for the trouble. “Rope” in bread is caused by the spore‐forming bacterium B. mesentericus. It has been suggested the disease is due to the decomposition of the starch by amylase, in which the organism is rich. There are several strains of this bacterium, which is of widespread occurrence—it is found, for example, in the soil. All kinds of flour, whether of high or of low extraction, and including those derived from cereals other than wheat, are possible carriers of the disease. However, carefully‐conducted experiments have shown that the “rope” spore content of the flour, unless particularly high, is of minor significance when outbreaks of “rope” occur. Far more important are the conditions under which the bread is made and under which it is treated after baking. It has been found that “rope” formation is more likely to develop in the dense crumb associated with under‐fermentation than in loaves in which the crumb is well‐developed. Use of sufficient yeast to cause the fermentation to be vigorous has also been found to be beneficial. The initial development of the organism appears to be at the expense of the soluble nitrogen compounds, sugars, etc., present in the bread. When these materials are exhausted, attack upon the protein of the loaf proceeds. A possibility is that prolonged fermentation causes a partial transformation of the gluten into nitrogenous substances which are more easily assimilated by the bacteria, whereas in a short, vigorous fermentation the formation of such substances may not occur to the same extent. Occurrences of the disease may be expected to be more severe with high extraction flours or whole‐meals, since higher extraction gives a medium which is better suited for the growth of the “rope”‐causing organism. All the members of the mesentericus group are characterised by the formation of spores which are extremely difficult to destroy by heating. For example, the spores can resist the temperature of boiling water for hours on end. Since the interior of a loaf probably does not exceed this temperature whilst in the oven, many of the spores will escape destruction. The spores will thus pass through the operation of baking and, if conditions are favourable, the development of the disease will start at or near the middle of the loaf. Since the damp, soggy crumb associated with an under‐baked loaf is conducive to the development of “rope,” thorough baking is a definite advantage. Owing to the fact that the “rope” organism requires warmth for its growth, rapid and thorough cooling of the bread in well‐ventilated cooling rooms is an important preventative factor. Spacing upon the racks should be such that the loaves do not touch, and the latter should not be packed whilst warm into delivery vans. Cleanliness is also of vital importance. Odd scraps of bread, dried dough, etc., may contain the spores of the organism and contact of the loaves with such material will lead to contamination which may bring to nought the preventative efforts made in other directions. Since the “rope” organism does not like acidity, addition to the bread dough of acidic substances is a useful deterrent. Acetic acid and acid calcium phosphate are particularly useful in this connection, since the requisite concentrations of these substances do not cause deterioration in bread quality. Bakeries with sackages below 100 per week may obtain without permit acetic acid solution of strength suitable for immediate addition. For larger users, the acid is supplied in a more concentrated form against a permit obtainable from the Directorate of Molasses and Industrial Alcohol, and is diluted before adding to the mixing. Though acetic acid or acid calcium phosphate may be used to suppress outbreaks or as preventatives during exceptional conditions, supplies of these agents are insufficient to enable them to be used continually as general preventatives during hot weather. For this purpose, the “acid dough” process of the British Arkady Co. Ltd., which requires no special materials, is recommended by the Ministry of Food. A small batch of “starter” dough is first prepared and is then incorporated into a larger mixing of “acid dough.” Portions of the latter are then added to the main mixing of bread dough, no alteration in the other constituents of the latter being required. Once the “acid dough” has been prepared, daily supplies may be kept up for months. A portion of the dough from the previous day is used as a starter for the new mixing, and from the second day onwards the “acid dough” becomes a fairly‐stabilised producer of acid.

The latest information from the magazine chemist is extremely valuable. He has dealt with milk‐adulteration and how it is done. His advice, if followed, might, however, speedily bring the manipulating dealer before a magistrate, since the learned writer's recipe is to take a milk having a specific gravity of 1030, and skim it until the gravity is raised to 1036; then add 20 per cent. of water, so that the gravity may be reduced to 1030, and the thing is done. The advice to serve as “fresh from the cow,” preferably in a well‐battered milk‐measure, might perhaps have been added to this analytical gem.

Generally speaking a “new” loaf is demanded and the baker who cannot deliver “new” loaves loses trade. But what is a “new” loaf? From the point of view of the chemist this question has formed the subject of innumerable investigations. A definition of a “new” loaf demands an understanding of “staleness” and the staling of bakery products is a subject of great complexity. The old idea was that it was entirely a question of the “drying out” of the bread, but cereal chemistry has proved that such a solution, namely the prevention of “drying out,” is only of partial efficacy; in fact “staleness” is caused by a change in the starch of the flour which is inherent in it and cannot be prevented by precautions which maintain the moisture content at a certain figure. The investigation of this type of staling has occupied the attention of many famous chemists, but the full explanation has not yet been obtained. Mass production has demanded many studies in that aspect of science known as “physical chemistry.” An example can be found in the preparation of certain sauces. Those of you who have made mayonnaise sauce know that to beat the olive oil into the mixture is fraught with difficulties. By means of the fork, used as a beater, the oil is distributed in very small particles through the mass of liquid, so that every globule of oil is separated from every other one. If the action docs not proceed properly the system breaks down and the mayonnaise “turns” and is spoiled. The manufacturer has to prevent this “turning,” not in a few pints but in hundreds of gallons. It is the chemist who has enabled him to do this and to manufacture with success those scores of salad‐dressings which are so delectable and the purchase of which relieves the housewife of so many hours of work and so much arm‐ache. An example of some interest is concerned with smoked salmon, which normally is a very variable product, whether it be the highly salted variety of the northern climes or the much less salted kind which has found favour in this country. The production of a lightly salted product is far more difficult than the more salted variety because much smaller changes in salt content become more noticeable. These small differences are so obvious to the confirmed smoked salmon eater that he detects not only the differences between one grade and another, but also the differences of salt content that occur in different parts of the same side of fish. It has fallen to the chemist so to change the methods of production of the lightly flavoured variety that the distribution of salt through the fish is even and the flavour therefore constant. This study of smoked salmon is only an example of the very big problem of standardisation, standardisation demanded by the consumer—and it follows that the big manufacturer must produce goods of standard flavour and appearance. Science steps in and gives the manufacturer those controls which enable him to produce, day in and day out, that standard range of article, whether it be ice‐cream or toad‐in‐the‐hole, Worcester sauce or cheese cakes, roast beef or jelly crystals. Modern science has introduced a new factor into our conception of what food should be. In the past it was only necessary to ensure that food should be “pure and wholesome,” by which was meant—in general terms—digestible and without any harmful constituents, be they natural or adventitious, bacterial or otherwise. So long as food complied with this broad definition everyone was satisfied. But biochemists and physiologists have demonstrated the importance of other factors, salts and vitamins, and it is necessary to consider the new situation thus created because it may be that the treatment of food to retain those substances may make it necessary to change preconceived notions. It may be that “palatability” may be affected, palatability which includes taste and appearance and odour. The whole subject is so complicated and, notwithstanding the enormous amount of work carried out, so little understood that no one as yet can be dogmatic, no one can state what are the optimum amounts of vitamins required by ordinary persons to keep them in good health. Having, however, decided the amount required, are we to try to preserve such quantities as occur naturally, or are we to fortify the food which we cat by added synthetic or even by purified natural vitamins? A further important consideration is whether the degree of maturity of, say, fruit in relation to maximum vitamin content coincides with optimum palatabilty. Certain it is that information gradually being accumulated on the importance—in many cases vital importance—of the minor constituents of foodstuffs leads to the conclusion that, to ensure the presence of all valuable minor constituents—be they known or unknown—the foodstuffs must, as articles of diet, be ingested almost in their entirety. This is probably an extreme view, for, in many cases, the result would be a product of reduced palatability or appearance, or, what is probably more important, “different,” and people do not like their food to be abnormal, i.e., to differ from their preconceived notion of what it should be. Nevertheless an “improvement” in the method of production, put into practice by the food manufacturer with the best intentions, may possibly result in a lowering of the dietetic value of the food, as, for example, by mechanical removal of an important part (the classical example being polished rice), by heat treatment, by oxidation or by materials added during cooking. The minor metallic constituents of food are gradually being revealed in their true importance. Copper, zinc, and iron are now known to be of importance. It is probable that every baby is born poor in calcium but rich in iron; milk, the natural food of the infant, is rich in calcium. It is only in the last few years that it has been shown that green vegetables as usually cooked are of very little real value. Cooking green vegetables in water containing sodium carbonate results in the almost complete destruction of the Vitamin C, and the discarding of the water removes the extracted salts. A green product certainly results but of greatly reduced nutritional value. On the other hand, it would appear that little destruction of vitamin activity takes place when the canning of vegetables or fruits is properly controlled. Sherman has said that attention to mineral salts and vitamins will lead to “buoyant” as distinguished from merely “passable” health. It is obvious that education of the public is essential if an intelligent use is to be made of the knowledge being gained by chemists and allied scientists. It is a most important fact that methods are being developed to assay foods for vitamins by chemical means. Biological feeding tests are obviously unsuitable for control purposes but, as the chemical identity of the vitamins becomes more clarified, chemical tests will become available for their determination. It is obviously the duty of the medical services of the country to guide the public as far as is possible on questions of nutrition. When such guidance becomes effective, the food producer will not be slow to see that his goods are up to the standard necessary, adding one more burden to the already loaded back of the chemist concerned with food production.

Another Christmas month is upon us, following it seems quickly on others that have been. Such is the relativity of Time, it is not yesteryear, but could be yester‐month or even yester‐week. The seasons pass like youth, all too soon. Our minds return to other Christmas months of yore — “Memories are like Christmas roses!”, the old saying goes. The children, singing much‐loved hymns and carols, happy family settings, a birth, christening, so much to look forward to in the new year. There are not always such happy memories, but memories just the same — Christmas in war‐time, Earth's joys growing dimmer each year, change and decay, life drawing to a close for many a soul; old folk tend to see Christmas as a time of passing, of leaving the world behind.

The brief announcement that the Government had accepted that there should be regulations on open date marking of food, to come into effect in 1975, will come as no surprise. It is a timely reminder of what public pressure can achieve these days; how sustained advocacy and publicity by interested sectors of society—magistrates, local authorities, public health workers, consumer groups—can secure legislative changes which, in this case, run counter to trade opinions and the recommendation originally made by the Food Standards Committee that such a proposal was not practical and the existing law was an adequate protection. This was stated in the FSC Report on Food Labelling of 1964, although there was no indication of the evidence reviewed or that the subject had been considered very deeply; it was, after all, only a small fraction of the problem of food labelling control. It was also stated in this Report that in certain cases, date‐stamping of food could give to purchasers a false sense of security, “not justified by the conditions under which the food has been kept since manufacture”.

The report of the Departmental Committee on the Irish butter industry to the Department of Agriculture and Technical Instruction for Ireland was issued on March 23 as a parliamentary paper. Mr. J. R. CAMPBELL was chairman of the Committee, and the other members were Mr. T. CARROLL, Mr. E. G. HAYGARTH‐BROWN, Lord CARRICK, and Mr. A. POOLE WILSON, with Mr. D. J. MCGRATH as secretary. The Committee were appointed:—

We have observed in the reports of those engaged in the administration of the Acts several references to the practice of milking so that a portion of the milk is left in the udder of the cow, this portion being removed subsequently and not included in the milk sent out to customers. The inspector for the southern division of the county of Northampton reports that on a sample of milk being found deficient in fat to the extent of 17 per cent., a further sample was taken at the time of milking when a milkman was found to be not properly “stripping” the cows. He was warned. The analyst for the county of Notts writes: “The first strippings obtained before the milk glands have been normally excited by the milking are very low in fat yet are “genuine” milk in the sense that nothing has been added to or taken from it. It is nonsense to talk of genuine milk in the sense that everything that comes from the udder of the cow is to be taken as genuine milk fit for sale.” In a case tried before the Recorder of Middlesbrough, one witness said that among some farmers it was a common practice not to “strip” cows until after the milk was sent away.