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Aircraft maintenance down times together with maintenance activity durations and associated man‐hour expenditure are extremely important factors contributing to two major yardsticks of airline and civil aircraft performance: despatch reliability and direct maintenance costs, and have important cost implications. In maintaining an aircraft there is a need to predict fault diagnosis activities in quantitative terms of time. Traditionally estimating maintenance, in particular fault diagnosis, in terms of time has received scant attention. This paper identifies the need to evaluate all maintenance activity times. In addition, an approach is offered to estimate fault diagnosis activity times using knowledge‐based systems. Finally, the paper offers a vision outline in applying the technology and techniques to provide cost‐effective and timely fault diagnosis.

According to Truth the War Office has selected Mr. C. C. DUNCAN, F.I.C., the Public Analyst for the County of Worcester, for a special post, in which “ he will be responsible for the examination of the water supply for the troops.” “It might be supposed,” our contemporary observes, “that the services of this scientific expert would be worth at least the pay of a Captain. The War Office thinks differently. It is giving Mr. Duncan the pay of a private soldier, a piece of parsimony in no wise excused by the fact that the difference between his military pay and his regular salary will be made up by the Worcestershire County Council.” It appears that MR. DUNCAN has been selected for the post in question on the recommendation of a body described by Truth as “ The Institute of Analysts.” As no such body exists we presume that either the Institute of Chemistry or the cumbrously‐named “ Society of Public Analysts and Other Analytical Chemists” is referred to. It would be interesting to know what the Councils of either or both of these concerns have got to say about the treatment of this member of the profession which they are supposed to represent and whose dignity and interests they are supposed to maintain. The monstrous advertisement issued by the Woolwich Arsenal authorities about a year ago in which scientific chemists with University degrees were invited to apply for appointments at the munificent remuneration of £2 per week is a sufficient illustration of the value put upon scientific attainments by Government Departments in this country. But even this example of fatuous ignorance and inane parsimony has been eclipsed by the present arrangements for the employment of scientific chemists in the Royal Engineers, in which they are invited to enlist with the rank of Corporal and with Corporal's pay and “allowances.” The sulphuric acid scandal recently exposed by The Globe makes it once more abundantly clear that where scientific advice even of an elementary kind is needed no attempt is made to obtain reliable guidance. The wrong people are invariably applied to for advice and the wrong men are appointed to fill responsible posts. The following remarks appear in The Globe of September 23rd :—“We have evidence of the incompetence of the High Explosives Department which thought it fitting to appoint as the comptroller of the shipment of oleum” (i.e., a form of sulphuric acid shipped from America) “a young man, wholly inexperienced, at a handsome salary, his only qualification apparently being that he was the son of his father. This young man was completely ignorant of the properties of oleum. His first introduction to the acid was when he was called upon to advise as to the best method of shipment.” According to the facts stated in The Globe the result of this bungling has been a loss of some hundreds of thousands of pounds to the taxpayers of this country.

Debates why and how some practices become universal – taking as a case in point closed‐chest massage (CCCM). Points out that CCCM was recognized in 1960 and its use generated heated debates, which altered the technique and reshuffled existing infrastructures. Claims that debates act as a catalyst for university. Investigates the emergence of CCCM, the debate on the merits (or otherwise) of closed versus open‐chested cardiac massage, and who could use the method of CCCM. Indicates that CCCM only became universally practised when it was incorporated into the infrastructure for dealing with emergency cases, and thus became taken for granted.

THE enterprise of two London newspapers, the Tribune (for the second time) and the Daily Chronicle, in organizing exhibitions of books affords a convenient excuse for once again bringing forward proposals for a more permanent exhibition. On many occasions during the past twenty years the writer has made suggestions for the establishment of a central book bazaar, to which every kind of book‐buyer could resort in order to see and handle the latest literature on every subject. An experiment on wrong lines was made by the Library Bureau about fifteen years ago, but here, as in the exhibitions above mentioned, the arrangement was radically bad. Visiting the Daily Chronicle show in company with other librarians, and taking careful note of the planning, one was struck by the inutility of having the books arranged by publishers and not by subjects. Not one visitor in a hundred cares twopence whether books on electricity, biography, history, travel, or even fairy tales, are issued by Longmans, Heinemann, Macmillan, Dent or any other firm. What everyone wants to see is all the recent and latest books on definite subjects collected together in one place. The arrangements at the Chronicle and Tribune shows are just a jumble of old and new books placed in show‐cases by publishers' names, similar to the abortive exhibition held years ago in Bloomsbury Street. What the book‐buyer wants is not a miscellaneous assemblage of books of all periods, from 1877 to date, arranged in an artistic show‐case and placed in charge of a polite youth who only knows his own books—and not too much about them—but a properly classified and arranged collection of the newest books only, which could be expounded by a few experts versed in literature and bibliography. What is the use of salesmen in an exhibition where books are not sold outright? If these exhibitions were strictly limited to the newest books only, there would be much less need for salesmen to be retained as amateur detectives. Another decided blemish on such an exhibition is the absence of a general catalogue. Imagine any exhibition on business lines in which visitors are expected to cart away a load of catalogues issued separately by the various exhibitors and all on entirely different plans of arrangement! The British publisher in nearly everything he does is one of the most hopeless Conservatives in existence. He will not try anything which has not been done by his grandfather or someone even more remote, so that publishing methods remain crystallized almost on eighteenth century lines. The proposal about to be made is perhaps far too revolutionary for the careful consideration of present‐day publishers, but it is made in the sincere hope that it may one day be realized. It has been made before without any definite details, but its general lines have been discussed among librarians for years past.

With the view of obtaining reliable first‐hand information as to the nature and efficacy of the food laws in Great Britain, France, and Germany, Mr. ROBERT ALLEN, the Secretary of the Pure Food Commission of Kentucky, has recently visited London, Paris, and Berlin. He has now published a report, containing a number of facts and conclusions of very considerable interest and importance, which, we presume, will be laid before the great Congress of Food Experts to be held on the occasion of the forthcoming exposition at St. Louis. Mr. ALLEN severely criticises the British system, and calls particular attention to the evils attending our feeble legislation, and still more feeble administrative methods. The criticisms are severe, but they are just. Great Britain, says Mr. ALLEN, is par excellence the dumping‐ground for adulterated, sophisticated, and impoverished foods of all kinds. France, Germany, and America, he observes, have added a superstructure to their Tariff walls in the shape of standards of purity for imported food‐products, while through Great Britain's open door are thrust the greater part of the bad goods which would be now rejected in the three countries above referred to. Whatever views may be held as to the imposition of Tariffs no sane person will deny the importance of instituting some kind of effective control over the quality of imported food products, and, while it may be admitted that an attempt—all too restricted in its nature—has been made in the Food Act of 1899 to deal with the matter, it certainly cannot be said that any really effective official control of the kind indicated is at present in existence in the British Isles. We agree with Mr. ALLEN'S statement that our food laws are inadequate and that, such as they are, those laws are poorly enforced, or not enforced at all. It is also true that there are no “standards” or “limits” in regard to the composition and quality of food products “except loose and low standards for butter and milk,” and we are compelled to admit that with the exception of the British Analytical Control there exists no organisation—either official or voluntary —which can be said to concern itself in a comprehensive and effective manner with the all‐important subject of the nature and quality of the food supply of the people. In the United States, and in some of those European countries which are entitled to call themselves civilised, the pure food question has been studied carefully and seriously in recent years—with the result that legislation and administrative machinery of far superior types to ours are rapidly being introduced. With us adulteration, sophistication, and the supply of inferior goods are still commonly regarded as matters to be treated in a sort of joking spirit, even by persons whose education and position are such as to make their adoption of so foolish an attitude most astonishing to those who have given even but slight attention to the subject. Lethargy, carelessness, and a species of feeble frivolity appear to be growing among us to such an extent as to threaten to become dangerous in a national sense. We should be thankful for outspoken criticism—if only for the bracing effect it ought to produce.

IN this issue we conclude our symposium on Modern Library Planning, and although it is not as complete as we could wish, it has certainly proved to be one of the most interesting subjects we have been able to deal with in recent years. We regret that lack of space has prevented us from including some interesting details about new libraries, and that we have laid ourselves open to the criticism of over‐crowding. We hope, however, that we shall be able, from time to time, to add further material as the occasion warrants. We had hoped to obtain a description of the Central Library Extension of the Hull Public Libraries, but this has, unfortunately, proved impossible. Lancashire County Library, too, is constructing four new branch libraries, an account of which we should have liked to include. Plymouth may be mentioned as still another library of which the material was not ready in time for our symposium. Also, we are sorry to have had to omit some of the illustrations which librarians have been kind enough to offer us for reproduction. In spite of these omissions, however, we have been able to gather together much that is new and interesting in modern planning, and one of the points that is well worth notice is the willingness of librarians to experiment in new ideas, even if conservatively.

The purpose of this paper is to provide a selected bibliography of recent resources on library instruction and information literacy.

The paper introduces and annotates periodical articles, monographs, and audiovisual material examining library instruction and information literacy.

The paper provides information about each source, discusses the characteristics of current scholarship, and describes sources that contain unique scholarly contributions and quality reproductions.

The information may be used by librarians and interested parties as a quick reference to literature on library instruction and information literacy.

“Consumerism”, for want of a better description, is given to the mass of statutory control (which shows no sign of declining) of standards, trading justice to the consumer, means of redress to those who have been misled and defrauded, advice to those in doubt; and to the widespread movement, mostly in the Western world, to achieve these ends.