CXXil 
NOTICE, 
In the 
Christmas Holidays NATURE 
for next week will be published 
on FRIDAY, DECEMBER 29. 
consequence of 
ST. MARTIN’S STREET, LONDON, W.C. 
A CHRISTMAS COURSE OF ILLUSTRATED 
| LECTURES. 
ROYAL INSTITUTION OF 
GREAT BRITAIN, 
21 ALBEMARLE STREET, W. 
Proressor ARTHUR KEITH, M.D., F.R.C.S., LL.D., F.R.S., 
will deliver a Christmas Course of Six Illustrated Lectures (adapted toa 
uvenile Auditory) on ““‘THE HUMAN MACHINE WHICH ALL 
UST WORK.” “Living Engines,” Thursday, December 28, 1916, at 
Three o'clock ; “ Living Levers,” Saturday, December 30; “‘ Living Pumps,” 
Tuesday, January 2, 1917; ‘‘Living Bellows,” Thursday, January 4; 
“Living Workshops,” Saturday, January 6; ‘‘ Living Wires and Central 
Exchanges,” Tuesday, January 9. Subscription (for Non-Members) to this 
Course, One Guinea (Juveniles under sixteen, Half-a-Guinea); to all the 
Courses in the Session, Two Guineas. Tickets may now be obtained at the 
Office of the Institution, 
ORIENTAL STUDIES. 
THE SCHOOL OF ORIENTAL STUDIES, London Institution, 
Finsbury Circus, E.C., will be OPENED on JANUARY 18, 1917. Courses 
will be held in the Principal Languages of the Near, Middle, and Far East, 
and of Africa. Courses will also be given on Oriental Religions and 
Customs. 
Intending Students are invited to apply at once to the undersigned. 
E. DENISON ROSS, Director. 
PORTSMOUTH EDUCATION 
COMMITTEE. 
SECONDARY SCHOOL. 
Head- Mistress : 
Miss A. M. Kenyon Hrtcncocr, B.A. (Lond.), L.C.P. 
APPOINTMENT OF ASSISTANT SCIENCE MISTRESS. 
Applications are invited for the position of an ASSISTANT SCIENCE 
MISLRESS. Salary to a University Graduate, £110, increasing to 4125 
per annum by 45 annual increments. 
Applications must be received at once. Further particulars and appli- 
cation form may be obtained by forwarding stamped addressed foolscap 
SaVPIARS iS the SEcRETARY to the Committee, at the Municipal College, 
ortsmouth, 
GIRLS’ 
COUNTY BOROUGH OF HUDDERS- 
FIELD TECHNICAL COLLEGE. 
J. F. HUDSON, M.A., B.Sc. 
Applications are invited for the following posts :— 
ASSISTANT LECTURER IN CHEMISTRY, 
DEMONSTRATOR IN BIOLOGY. 
Women eligible. 
PRINCIPAL - 
Salary £150. 
Further particulars on application. 
T. THORP, Secretary. 
SS 
MEDICAL RESEARCH. 
_ DIRECTOR WANTED, Walter and Eliza Hall Institute of Research 
in Pathology and Medicine, Melbourne, Australia. Salary £800, with 
any premium of £75 for retirement in addition, Tenure, five years. 
Eligible for reappointment. Whole time. Applications by January 24, 
19 17, to the AGENT-GENERAL Fox Vicroria, Aldwych, Strand, London 
from whom full intormation can be obtained, ; 
NAT.URE 
[| DECEMBER 21, 1916 
| UNIVERSITY COLLEGE OF SOUTH 
WALES AND MONMOUTHSHIRE. 
Coleg Prifathrofaol Deheudir Cymru A Mynwy. 
The Council of the College invites applications for the post of Temporary 
Lecturer in Chemistry to Medical Students and Temporary Assistant 
Lecturer and Demonstiator in Chemistry. Salary £200 per annum. 
Further particulars may be obtained from the undersigned, by whom 
applications, with testimonials (which need not be printed), must be received 
on or before January 8, 1917. P 
D. J. A. BROWN, Registrar. 
University College, Cardiff, 
December 19, 1016. 
ANALYTICAL CHEMIST. 
QUALIFIED ASSISTANT, ineligible for military service, required in 
the laboratory of the Manchester Corporation Sewage Works, Davyhulme, 
Urmston. 
Applications, stating age, experience, and salary required, to be addressed 
immediately to the Chairman of the Rivers Committee, own Hall, 
Manchester. 
FIRST BOOK ON CHARTS EVER PUBLISHED. 
Useful to Sailors, Fishing Authorities, and Students of Marine 
Science. 
CHARTS: Their Use and Meaning. 
. With 13 Figures and 8 Charts. 
By Dr. G. HERBERT FOWLER, 
Published by J. D. POTTER, 145 Minories, London, E.C. Price 4s, 
Books on Seientifie, Teehnieal, 
Edueational, Medieal, all other 
1 
BOOKS = subjeets, and for all Exams. 
SECOND-HAND AT HALF PRICES: New Books at Discount Prices. 
CATALOGUES FREE. State Wants. Books sent on approval, 
BOOKS BOUGHT: Best Prices Given. 
W. & C, FOYLE, 121-123 Charing Cross Road, London, 
(Ss 
E. GEORGE & SONS, Ltd., 
23 Jacob Street, London, S.E., England. 
J. POOLE & CO 
ESTABLISHED 1854 
SCIENTIFIC & EDUCATIONAL 
BOOKSELLERS 
BOOKS, MAGAZINES 
and PERIODICALS 
Despatched regularly to all parts. 
Can we send you particulars of our 
POSTAL SERVICE? 
Individual requirements studied and lowest 
' prices quoted. 
Second Hand Books at about half published price. 
New Books at discount price. 
ENQUIRIES BY WAR Ti 
RECEIVE IMMEDIATE ATTENTION 
104 Charing Cross Road, London, W.C. 
THE IRISH NATURALIST. 
A Monthly Magazine of Irish Zoology, Botany, and 
Geology. Price 6d. 
Edited by Prof. GEO. H. CARPENTER, B.Sc., R. LLOYD 
PRAEGER, B.A., and ROBERT J. WELCH. 
Annual Subseription, 5s. Post Free to any Address. 
Dublin: EASON & SON, Lrp., 40 Lower Sackville Street 
{to which Address Subscriptions should be sent). 
