54 



NATURE 



[September io, 1914 



University of Leeds whereby students of tlie Univer- 

 sity or of the college have the use of certani equipment 

 and other facilities at both institutions. Students 

 remaining for a fourth year may take up advanced 

 studies or research in a large number of branches of 

 technological science. The associateship of the col- 

 lege, which confers several privileges, is awarded to 

 certain students who, holding the college diploma, 

 have attained their majority, had a year's practical 

 experience with a firm engaged in their trade or pro- 

 fession subsequent to obtaining the diploma, and have 

 submitted an approved original thesis. 



The calendar for the forthcoming session — the one 

 hundred and nineteenth — of the Royal Technical 

 College, Glasgow, is now available. It will be re- 

 membered that in 19 13 the college became afTiliated 

 to the University of Glasgow. A university ad- 

 visory joint-committee has been established, and a 

 joint-board of studies in applied science and joint- 

 boards of examiners in the same department repre- 

 sentative of the university and the college, have been 

 constituted. Candidates for the degree of B.Sc. in 

 applied science may attend the necessary qualifying 

 courses either in the university or in the college or 

 in both, provided that the fees paid for graduating 

 courses in the college are not less than those payable 

 for corresponding courses in the university. The 

 courses of study provided by the college in civil, 

 mechanical, electrical, and mining engineering include 

 the classes necessary for graduation in applied 

 science. The University of Edinburgh has recognised 

 the day classes of the college as qualifying for its 

 degree of B.Sc, under certain regulations. Among 

 other interesting arrangements explained in the 

 calendar that may be mentioned by which a large 

 number of engineering firms have expressed their 

 willingness to allow a selected number of their ap- 

 prentices facilities for carrying out a scheme of college 

 study conjoined with practical work. The courses 

 of study in engineering are held during the winter 

 session of the college, and thus student-apprentices 

 are left free to spend the intervening summers in 

 works. The college provides practical instruction in 

 all branches of technology, and the calendar gives full 

 particulars of all for the use of intending students. 



SOCIETIES AND ACADEMIES. 

 Paris. 

 Academy of Sciences, August 24.— M! P. Appell in 

 the chair.— B. Baillaud : Observations of the eclipse 

 of the sun of August 21 made at the observatories of 

 Algiers and Paris. At Algiers the eclipse was ob- 

 served under good conditions. Thirty photographs 

 were obtained, times of contact measured, and the 

 ionization studied. At Paris measurements were made 

 of times of contact and four negatives were taken, but 

 clouds interfered with the observations.— H. Deslandres 

 and A. Perot : A second" series of attempts to obtain a 

 maximum magnetic field. The use of water with a 

 new mode of cooling. The authors have aimed at the 

 use of intense currents and large quantities of elec- 

 trical energy rather than applying enormous masses of 

 iron. The essential difficulty is the cooling of the 

 bobbins carrying the high current, and an apparatus 

 for effecting this with a current of water is described 

 and illustrated. The maximum field obtained was 

 63.700 gauss, 22, goo of which was due to the iron 

 core. The current used was 5000 amperes. A field of 

 50,000 gauss was obtained without an iron core 

 (energy 340 kilowatts). The possibilitv of obtaining 

 still higher fields by this method of winding and cool- 

 ing is discussed. — M. Bezssonoff : The pigments of 

 Fusarium. Two pigments are present : one yellow, 

 NO. 2341, VOL. 94] 



belonging to the anthocyanic group ; the other red, 

 identified with Caroline, described by Wildstater. — 

 E. Maurii : The nutritive value of ossein. The nitro- 

 genous material contained in bones is of considerable 

 nutritive value. Details of the mode of extraction are 

 given. — J. Danysz : The treatment of trypanosomiasis 

 by arsenical compounds, combined with salts of silver 

 and antimony (products 88- and io2»). The compound 

 specially studied had the composition 



[C,,H,,.0,N,As,].AgBr.SbO(H,SO,)„ 

 and showed marked improvement in therapeutic pro- 

 perties against Tr. surra and Tr. gambiense as com- 

 pared with compounds previous tried. In the case of 

 the mice used for the experiments the fatal dose (per 

 20 grams) was 5 mgr., the tolerated dose 0*4 mgr. 

 The ratio between the tolerated dose and the curative 

 dose was 80 : i for surra and 100 : i for Tr. gambiense. 

 Confirmative experiments were carried out on rabbits. 

 ^. M. Barbosa : The bronchial sphincters in Delphinus 

 delphis. 



BOOKS RECEIVED. 



Rendiconto dell' Accademia delle Scienze Fisiche e 

 Matematiche. Serie 3a. Vol. xix. Fasc. 6-10; 11-12. 

 Serie 3a. Vol. xx. Fasc. 1-4; 5-6. Serie Seconda. 

 Vol. XV. (Napoli : Scienze Fisiche e Matematiche.) 



The Standard Cyclopedia of Horticulture. By L. H. 

 Bailey. Vol ii. Pp. 603-1200. (London : Macmillan 

 and Co., Ltd.) 255. net. 



City of Bradford Technical College. Calendar for 

 the Thirty-third Session, 1914-15. (Bradford.) 



Contributions from Walker Museum. Vol. i., No. 8. 

 The Osteology of Some American Permian Verte- 

 Drates. By S.W. Williston. Pp. 107-162. Chicago: 

 University of Chicago Press ; London ; Cambridge 

 University Press.) is. net. 



CONTENTS. PAGE 



The War — and After 29 



Biology of the Sex- and Blood-Cells. By R. T. H. 30 



Mathematical Text-Books 31 



Our Bookshelf 33 



Letters to the Editor: — 



Micromilliinetres and Micromicrons. — Dr. John W. 



Evans 34 



Origin of Species. — Newton B. Pierce 34 



Lectures on the Animal Kingdom by Linnaeus.. By 



F. A. B 34 



Notes 35 



Our Astronomical Column :— 



Comet i9i3/'(Delavan) 38 



The Recent Eclipse Expeditions 38 



The Mirrors of the Helwan Khedivial Observatory . , 38 



Plant-Life at the Snow-Line 39 



Recent Work on Entomology. By R. L. .... 39 

 The Australian Meeting of the British Association — 

 Section E. — Geography. — Opening Address by Sir 

 Charles P. Lucas, K.C.B., K.C.M.G., Presi- 

 dent of the Section ... 40 



Section G.— Engineering. — Opening Address by Prof. 

 E. G. Coker, M.A., D.Sc, President of the 



Section 48 



University and Educational Intelligence 53 



Societies and Academies 54 



Books Received 54 



ST. 



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