clxxxiv 



NOTICE. 



A new volume of NATURE, the 

 85th, will begin on Thursday next ; 

 the occasion is therefore favourable 

 for the commencement of subscrip- 

 tions. 

 CL For particulars as to the cost of 

 subscriptions (which are payable 

 in advance), see p. cxci of the 

 present number. 

 ST. MARTIN'S STREET, LONDON, W.C. 



NATURE [October 27, 1910 



B I R KBECK COLX^GE 



BREAMS BUILIilNGS, CHANCERY LANE, EC 

 DAY AND EVENING 'CLASSES. 



Conrses of Study under Recognised Teachers of the University 

 London for Degrees in Science, Arts and Economics. 

 /A. McKknzie, D.Sc, M.A., Ph.D. 



IMPERIAL COLLEGE OF SCIENCE 

 AND TECHNOLOGY, 



Including the 

 ROYAL COLLEGE OF SCIENCE, 

 ROYAL SCHOOL OF MINES, and 

 CITY AND GUILDS COLLEGE. 



Special Courses of Advanced Lectures, as follows, will begin during 



Subject. Conducted by :— 



"COLOUR VISION" {^"Z'c:'ii:'^^:ir''''^''-^' 



"TIMBER: ITS STRUCTURE. /^t /f".*^""""' ^■^■' ^■^''■• 

 DEFECTS, AND DISEASES"! F L.S., Assistant Professor of 



. 1. Botany in the Imperial College. 



Particulars of these and other Courses to follow free on application to 



the Secretary. 



EAST LONDON COLLEGE. 



(UNIVERSITY OF LONDON.) 



MILE END ROAD, E. 



The College is situated close to stations on the G.E.R., District Railway 



and L.T. and Southend Railway, and is approached from The Royal 



Exchange in 15 minutes by motor omnibus. 



FACULTIES of ARTS, SCIENCE and ENGINEERING. 



PASS AND HONOURS COURSES. 



Latin, Greek, English, French, German. English History, 



Mathematics, Physics, Chemistry, Botany, Geology. 



CIVIL AND MECHANICAL ENGINEERING. 



ELECTRICAL ENGINEERING. 



FEES, TEN GUINEAS PER SESSION. 



PRELIMINARY AND MATRICULATION CL.\SSES. 



FACILITIES for POST-GRADUATE and RESEARCH 



WORK. 



Valuable Scholarships are offered annually by the Drapers' Company. 

 Calendar post tree on application to the Registrar, or to 



J. L- S. HATTON, M.A.. Principal. 



CITY OF LONDON COLLEGE. 



ACTINC IN CONJUNCTION WITH THE LONDON CHAMBER OF COMMERCE. 



WHITE ST., and ROPEMAKER ST., MOORFIELDS, E.C. 



(Near Moorgate and Liverpool Street Stations. I 



Principal: SIDNEY HUMPHRIES, B.A., LL.B. (Cantab.) 



EVENING CLASSES in SCIENCE. Well-equipped 

 LABORATORIES for Practical Worlt in CHEMISTRY, 

 BOTANY, GEOLOGY, and all branches of PHYSICS. 



Special Courses for Conjoint Board, Pharmaceutical and other examin- 

 ations. Classes are also held in all Commercial Subjects, in Languages 

 and Literature. Art Studio. All Classes are open to both sexes. 



SATURDAY CLASSES for Chemistry and Physics. 



r>l^tX..¥PJ^^^^ SCHOOL Preparation for a COMMERCIAL or 

 BUSINESS career or the CIVIL SERVICE. 

 Prospectuses, and all other information, gratis on application. 



DAVID SAVAGE, Secreta ry. 



Several Laboratory Assistants are required 



for a large Chemical Faclory near Glasgow. Applications may be 

 addressed to " Chemist," Messrs. Wm. Porleous & Co., Gla.sgow, ar.d 

 should be accompanied by particulars of experience, qualifications and 



Chemistry 

 Physic* 



Clough, B.Sc. 

 (A. Griekiths, D.Sc; D. Owfn. B a., B Sc 

 * „^;,^- f^t-/CK, B.Sc. ; H. R. Nettleton, B.s'c 



H. C. I. Fraser, D.Sc. ; E. Lee, A.R.C.S. 



H W. Unthank, B a., B.Sc. 



J. W. Evans, D.Sc. ; A. Morley Davibs, D.Sc. 



E. H. Smart, M.A. ; C. V. Coates, M.A. 



F. A. Wrighf, M.A. ; G. S. Robbetson, M.A. 

 M.A. 



TAN, B.A. 



V. E Kastner, B.es.L.; J. S. Westlake, M.A. 



J. ElTHELL. M.A. 



J. F. Unstead, M.A. 

 T. Seccombe, M.A. 

 fG. Armitagk-Smith, M.A., D.Lil. 



I G. C. Rankin, M.A. 



British Constitution. G. H. J. Hurst, M.A 

 Assaying. Metallurgy. Mining. G. Patchin, A.R.S.M. 



Prospectus /ree, Calendar ^d. (post free sd.)./rom the Secretary. 



Botany 



Zoology 

 Geology 

 Mathematics.. 



Classics . . .>. ..„, 



Eng. Literature J. H. Lob„, 

 I, Language J. H. G. Gk 

 French ... " " " 



Qerman 

 Qeography 

 History 

 Logic ) 



Economics / 



THE SIR JOHN CASS TECHNICAL 

 INSTITUTE. 



JEWRY STREET, ALDGATE, E.C. 



Principal— Charles A. Keane, D.Sc, Ph.D., F.I.C. 



E:1'EN'NG CLASSES in CHEMISTRY, PHYSICS and MATHE 



MA lies designed to meet the requirements of those emraired ir 



CHEMICAL and ELECTRICAL INDUSTRIES and in ^rade- 



associated therewith. 



Also preparation for the B.Sc. Examination of London 

 University. Courses for Honours B.Sc. in Physics. 

 „. . rCHARLEs A. Keane, D.Sc, Ph.D., F.I.C. 



Chemistry \ H. Burrows, A R.C.S., Ph.D., F.I.C, and 



I A. R. Smith, M.Sc, A.I.C. 



P"-^''" {f. f. H^R^oi;!' b'!Ic'^,- A^r'cIs^"" 



Mathematics E. C. Snow, B.A. 



Every facility for Advanced Practical Work and Research 



in well-equipped laboratories both in the afternoon and evening 

 NEW SESSION began MONDAY, SEPTEMBER 26 

 For details of the Classes apply at the Office of the Institute, or by letter 



to the Princital. 



SOUTH-WESTERN POLYTECHNIC INSTITUTE. 



MANRESA ROAD, CHELSEA, S.W. 



DayCoursesin preparation for London University degrees in Mechanical 

 and Electrical Engineering, in Chemistry, Physics and Natural Science 



Session Fee, ;£i5. Simi\ar Ezienm^ Courses. Session Fee, ,£3 loi. 



Technical Day Courses arranged to extend over 3 years and prepare for 



Engineering, Electrical, Chemical and Metallurgical professions. 



Mathematics *W. H. Eccles, D.Sc. ; *J. Lister, A.R.C.S. 



PhvsicB f*S. Skinner, M.A. ; »L. Lownds,' B.Sc, Ph.D.. 



Physics ... j p j^^^^^^ g g^^ ^^^ ^ j^, H^^^^^^^g;^- 



Chemistry... | ^■^■^°'-™^'i'J'-S-^-'^- ' '^- C- Crocker, M.A., 

 I D.Sc, and *F. H. Lowe, M.Sc. 



Botany ... r^;,P\h'^'^^'' ' ^- ^- Chandler, D.Sc, and 



_ ' I *H. J. Jeeeerv. A.R.C.S. 



Geology ... *A. J. Maslen, F.G.S., F.L.S. 



Zoology ... "J. T. Cunningham, M.A. 



Engineering ( "^^;,^,*'" ™ '''-'- """ston, B.Sc, A.M.I.C.E. ; 



^. ^ . , *. *A. Macklow Smith, B.Sc, and H. AuGHTiE. 



Electrical ( *A. J. Makower, M.A. ; 'B. H. Morphv and 



Engineering V U. A. Oschwald, B.A. 



• Recognised Teacher of the University of London. 



Full prospectus from the Secretary, post free, 4d. ; at the OfiBce 

 pnceid. SIDNEY SKINNER. M.A., Principal. ' 



SWINEY LECTURES ON GEOLOGY, 

 1910. 



Under the direction of the TRUSTEES of the BRITISH MUSEUM. 



A Course of Twelve Lectures on "The Coasts of Great Britain 

 AND Ireland will be delivered by T. J. JEHU, M.A., M.D., F.R.S.E., 

 m the Lecture Theatre of the Victoria and Albert Museum, South Ken- 

 .sington (by permission of the Board of Education), during the month of 

 AozYiuier, on Mondays and Tuesdays at 5 p.m., and Saturdays at 3 p.m. 

 beginning .Saturday 5, and ending Tuesday 29. The Lectures will be illus 

 traled by Lantern Slides and Lime-light. Admission Free. Entrance in 

 Exhibition Road. 



British Museum (Nai 



Hi. 



ell Roail, Londo 



■ry). 



FOR SALE. — To Lecturers, Publishers, and 



AUTHORS, a large number of LANTERN SLIDES by Newton and 

 others, Barrier Reef and miscellaneous, property of late W. Saville- 

 Kent ; also Photographs, all kinds of subjects, by the same, specially 

 Fungi and Orchids. -■•Belsito," Milford-on-Sea, Hants. 



