August i i, 1923] 



NA TURE 



215 



not be better to retain the use of the term high- 

 frequency treatment until it is definitely proved that 

 the beneficial effects are due to the radiation. A 

 large variety of electrodes suitable for the cavities 

 and other parts of the body is illustrated, and instruc- 

 tions are detailed for their use. 



The British Medical Association (429 Strand, 

 W.C.2) has published and issued a useful " Handbook 

 for Recently Qualified Medical Practitioners " (price 

 25. dd. net). It gives concise but clear details of the 

 duties of medical practitioners and of the legal 

 obligations (by Dr. W. A. Brend) placed upon 

 registered practitioners. The main careers open to 

 members of the medical profession are summarised, 

 and a section is devoted to post-graduation study and 

 special diplomas. A section deals with the British 

 Medical Association and its work, and the Dangerous 

 Drugs Regulations are printed in an appendix. 



Publication No. iio of the Koninklijk Neder- 

 landsch Meteorologisch Instituut is an important con- 

 tribution to the oceanography of the Atlantic. It is 

 a summary of about two and a quarter millions of 

 observations made by steamers and sailing ships 

 during March, April, and May throughout the period 

 1 856-1 920. There are 186 pages of tables and an 

 atlas, with 24 plates. These represent currents, 

 winds, the general circulation of the water and air, 

 isobars, the general courses of water and air isotherms, 

 and the limits of ice, fogs, etc. The tables were 

 published in 1921 and the plates in 1922. 



Recent fishery publications include two papers 

 from the Ministry of Agriculture and Fisheries 

 (" Fishery Investigations " ; Ser. II. vol. v., Nos. 

 5 and 6). No. 5, by Dr. W. Wallace, is a report on 

 experimental hauls with small trawl nets made in 

 the shallow waters of the North Sea in the years 

 1904-1912. No. 6 deals with the plankton collected 

 during special cruises made in 1920-21 in order to 

 estimate the annual production of plaice ova. The 

 report is prepared by Mr. R. E. Savage. An important 

 report (in continuation of earlier ones) on the life- 

 history of the mackerel is contained in vol. xxx. of 

 the reports (issued by the International Council for 

 Fishery Investigations). This paper is the work of 

 Dr. E. Ehrenbaum, of the Natural History Museum 

 in Hamburg. 



We have received from the Eastman Kodak Com- 

 pany of Rochester, New York, the fifth volume of 

 the " Abridged Scientific Publications from the Re- 

 search Laboratory " of the Company. Owing to the 

 increasing number of publications it has been decided 

 to issue these volumes annually, and the present 

 volume deals with the papers which were published 

 during 192 1. The abridgments are, of course, some- 

 what condensed as compared with the original papers, 

 to which any one actually working at the subject 

 dealt with would naturally refer, but for almost every 

 purpose the abridgments will probably be found 

 advantageous. Twenty-three communications are 

 given in 172 pages, and there are added indexes of 

 authors and subjects. This series of volumes forms 



NO. 2806, VOL. 112] 



a most valuable record of the activities of the Com- 

 pany's Research Laboratory, and incidentally a good 

 indication of the general trend and progress of 

 scientific photographical investigation throughout the 

 world. 



Dr. G. Arnold's report as curator of the Rhodesia 

 Museum, Bulawayo, for 1922, announces the com- 

 pletion of the new wing and the transference to it of 

 the zoological collections and part of the ethnological 

 material, thus freeing space for economic exhibits in 

 the old building. As a result of Dr. Arnold's mono- 

 graph on the sandwasps of the Ethiopian Region, 

 the types of 70 new species have been added to the 

 collection, a number that probably will be doubled. 

 There are also accessions of type-specimens among 

 bees, beetles, and Neuroptera, as well as the syntype 

 of Tangasaurus mennelli, a lizard-like reptile from 

 beds of Karroo age in Tanganyika Territory. *k 

 Examination of the previously reported Codrington 

 collection of ethnological objects has brought to light 

 nine ceremonial staves of chiefs, from Kasembe's 

 stronghold, such as could no longer be obtained 

 to-day. Five Bantu spears with copper blades are 

 evidence that the Bantu were more than capable of 

 producing the metal weapons found at Zimbabwe. 

 A female Bantu skeleton, found in an ancient mine- 

 working near Gwanda, Southern Rhodesia, has been 

 studied by Sir Arthur Keith, who considers it to date 

 back 800 years or more. It will be seen that this 

 report, though brief, indicates a great deal of good 

 work. 



Messrs. Ross Ltd., optical instrument makers, 

 have been awarded the diploma of the Grand Prix 

 at the International Exhibition of Photographic 

 Optics and Kinematographs held recently at Turin. 



The lectures delivered by Sir J. J. Thomson in 

 April last on " The Electron in Chemistry," before 

 the Franklin Institute, are being published singly in 

 the Journal of the Institute. The complete series 

 will shortly be published in book form under the title 

 " The Electron in Chemistry." 



It is announced by Messrs. Longmans and Co. 

 that the new edition of Thorpe's " Dictionary of 

 Applied Chemistry," which is now in course of 

 publication, will extend to seven volumes, and that 

 a large part of the concluding volume will be devoted 

 to an index to the complete work. 



The latest catalogue (No. 449) of Mr. F. Edwards, 

 83 High Street, Marylebone, W.i, is devoted to books, 

 engravings, and paintings relating to the Indian 

 Empire, and gives particulars of some 646 items, 

 including geography and travel, ethnology, natural 

 history, antiquities, etc. Among the works listed is 

 " Annals of the Royal Botanic Garden, Calcutta," 

 vols. I to 8. 



Messrs. W. Hefeer and Sons, Ltd., Cambridge, 

 have in the press a translation of " The Internal 

 Secretion of the Sex Gland," Prof. A. Lipschiitz, 

 with a foreword by Dr. F. H. A. Marshall. The work 

 will give an account of the recent experimental work 



