NATURE 



OCTI IB] l: lt>, H)l8 



CI n'd oi Education), Sir John - 



< i dui ation I >epai ttnen 10 Slajoi R. 

 trj ol Pensions). In additi hi 



following, ig others, have been hi 



of the IJoard of Rdu< afn fie Seen tarj 



ind to ad a^ i xpi rt ad' »ei tal ques- 



thej ai ise : Sir ( traham I lalfoui , I )ii ectoi 



oi Education, Staffordshire; Sir Roberl Blair, 



ion ' fffici i, I ..i I i. Hon. \\ . Pi mbi . 



Ri i \ es, dii ector, London School oi Ei on ii 3 ; 



Dr. «i. MacDonald, Assistanl Secretary, Scotch 

 Education Department; Dr. E. Salter Davies*, Direct 

 tor nf Education, Kent; Mr. Albert Mansbridge, vice- 

 president, Workers' Educational Association; Prof. 

 Gilbert Murray, Regiu; professor of Greek, Oxford 

 ! hn Adams, principal, London 

 Day Training Colli w ■ do not recognise a single 



01 practical education in 

 the list nl thi h and its advisory committee 



and individual < tperts, though we should have sup- 

 posed thai ai educational scheme for the Army would 

 neqessai il cei ned largely \\ itli scien 



technical subjects. The special questions which will 

 irisi certainh involve the consideration of 



and technological training not entirely 

 within the Geld of the educational administrators and 

 expert advisers whose names are announced. The War 

 Office should remed} what is a manifest deficienc} in 

 nstitution of its new branch. 



SOCIETIES AND ACADEMIES. 

 Cape Town. 

 Royal Society of South Africa, August 21. — Dr. J. D. F. 

 Gilchrist, president, in the chair. — L. Simons : Theveloci- 

 tiesof two distinct groupsof secondary corpuscular rays 

 produced b} a homogeneous Rontgen radiation, and 

 theii absorption coefficients in gases. The absorption 

 coefficients in gases of the secondary corpuscular rays 

 produced In the incidence of silver X-rays on a single 

 gold leaf were found by calculation from the pressure 

 at which the cathode ionisation falls to half its maxi- 

 mum value. The; are probablv too high for the 

 fastest corpuscles produced. The lo^. cathode ionisa- 

 tion curves could be analysed into two distinct por- 

 tions when the particles emerge from a verv thin 

 screen, giving two absorption coefficients in a gas, 

 their ratio being 1 : 4-76. The maximum velocity of 

 emergence of the slower corpuscle was found to be 

 65x10* cm. sic, and the vdocitv of the faster cor- 

 was Mil to cm. sec. G. \. Boulenger : (11 \ 

 lizard of the genus Latastia from Southern 

 Rhodesia. (2) Rana ornatissima and R. ruddi. — 

 \, Theiler : A nematode of fowls having a 

 an intermediate host. Some time ago .1 

 farnvr forwarded a species of termite infected with 

 mciuiring whether these worms were a 

 life-cycle of the wireworm of sheep 

 [Haen fortus). This possibility of course, 



had i" bi 1,111 since they wen larvae il was 



concluded 1 represented a stage in the life- 



cvcle of a hich had its habitat in a host 



thai would 1 nites. Main- birds are known 



to 1 .it termite ; are partii tilai b Fond "I them. 



h w ,is dei id, d ti tei mites as w ell .1- the 



In vae extt acted I hem For this ourposi 



hatched in an 1 ,,1 the chick-ens reared 



under eonditii ms exclt il infei tion. In- 



fected termite! were found on red soil in the neigh- 

 bourhood of a Kaffir kraal \ ' - of experiments 

 was carried out, and in 1 an imago 



, , mi.iin, ,1 in the small 1 ■ ,i the fowls. 



The control fowls were free of it, a as controls 



in an area not inhabited pedes ol 



XO. 2554, VOL. I02] 



termite, lb, imago was identified as .1 Filaria, and 



-' 1 turned out io bi a mw species the name 



Filaria gallinarum is proposed. Sir Thomas Muir : 

 ibli into a sequem e of odd 

 \lis~ K. \I. Doidjje : Meliolaster : .1 new 

 genus ol the Microthvriaceas. \ fungus occurring oa 

 Viper capensis is described, which combines certain* 

 1 bai • - ol thi genera Meliola and Asterina. 



KS RECEIVED. 



The Applications "I Electrolysis in Chemical 

 Industry, lb A. J. Hale. Pp. i\ : [48. (London: 

 i Go-.) ys. 6d, net. 



The 1 i . ion between Relatives on the Supposi- 



limi ol Mendelian Inheritance. I!\ R. A. Fisher. 

 (Transactions of the Royal Societ) of Edinburgh- 

 Vol, lii. Pari ii. No. 15.) (Edinburgh: R. Grant 

 and Son.) 



British An iretica (Terra Nova) Expedition, mm. 

 Natural History Report. Zoology. Vol. ii. No. 8. 

 Brachiopoda. B5 J. W. Jackson. Pp. 177-202 I plate. 

 (London: British Museum (Natural History).) 5s. 



Solutions of the Examples in a Treatise on 

 Differential Equations, Bj Prof. A. R. Forsyth. 

 Pp . |,, 1 I , mdon : M.i' mill. in and Co., Ltd 

 net. 



DIARY OF SOCIETIES. 



TUESDAY, Octoii i 

 [NST1TUTI0K .1 ri Notes on 



theGeologyof the Persia, Busk and H. T. Mayo. 



WEDNESDA 1 ' 

 ROYAL Mi, I So [bty, al \ New Illnminant for Micro- 



51 opil .,1 W i ,,:,rd. 



FRIDAY, O, i 

 Institution of Mechanical Engineers, at 6. 



CONTENTS. page 



The Metallurgy of Zinc. By H. C. H. C ioi 



The Nature of Solution. By T. M. L lot 



The Future of the Sea Fisheries. By J. J 102 



The Basis of Mental and Nervous Disorders . . 102 



Food and Health 103 



Our Bookshelf 104 



Letters to the Editor: — 



Observations of Nova Aquilrc in India. — J. Evershed, 



F.R.S ... . .105 



The "Taylor" System of "Scientific Manage- 

 ment." By Capt. J. M. Scott-Maxwell 106 



German Industry after the War. Ill 107 



Dr. Henry Dyer. By C. G. K. 109 



Notes . . no 



Our Astronomical Column : — 



Electric-furnace Spectra 1 14 



The Nebular Hypothesis 114 



The Problem of Adult Education 114 



A Monograph on Cow-wheat 115 



Lacustrine Fauna in the Far East .... 116 



Carbonisation Reactions. By Prof. John W. Cobb. 116 



Forthcoming Books of Science 117 



University and Educational Intelligence 119 



Societies and Academies 120 



Books Received 120 



Diary of Societies 120 



Editorial and Publishing Offices: 



MACMILLAN AND CO., Ltd.. 



ST. MARTIN'S STRKF.T. LONDON, W.C.2. 



Advert 



aid business letters 

 Publishers. 



to be addressed to the 



Editorial Communications to the Editor 

 iphic Address: Phusis, London. 

 Number Gerhard S830. 



