Ixvi 
NATURE 
[Fuly 2, 1885 
UNIVERSITY COLLEGE OF SOUTH 
WALES AND MONMOUTHSHIRE. 
An_ ASSISTANT LECTURER in MATHEMATICS will be AP- 
POINTED in SEPTEMBER (Stipend, £100 per annum). Candidates 
must send in applications, with testimonials and references, not later than 
AUGUST 27. 
For further information apply to 
Cardiff, June 12, 1885. IVOR JAMES, Registrar. 
THE YORKSHIRE COLLEGE, LEEDS. 
APPOINTMENT OF PROFESSOR OF CHEMISTRY. 
The Council invite applications for the Chair of Chemistry to be vacated 
by Dr. Thorpe, F.R.S., on September 30. Applications will be received up 
to July 14, and should be accompanied by Six Testimonials, and by the 
names of Three Referees. Further information may be obtained from the 
SECRETARY. 
MINERALS AND STONE 
IMPLEMENTS. 
MR. BRYCE-WRIGHT begs to call the attention of his Clients and the 
Public to his large Series of 
MINERALS AND STONE IMPLEMENTS, 
from which single specimens can be selected. 
Elementary Collections of Minerals, Fossils, and Rocks from £1 upwards. 
N.B.—These Collections obtained the Prize Medal, 1862. 
GEMS AND PRECIOUS STONES OF EVERY DESCRIPTION. 
BRYCE-WRIGHT, 
Mineralogist and Expert in Precious Stones, 
204, REGENT STREET, LONDON, W. 
MINERALOGY AND GEOLOGY. 
PROFESSORS, COLLECTORS and VISITORS to LONDON are 
INVITED to INSPECT Mr. HENSON’S STOCK of CHOICE MINE- 
RALS, &c., &c. At the PRESENT TIME he has a PARTICULARLY 
FINE CRYSTALLISED NUGGET of NATIVE GOLD, WEIGHT 9 oz., 
PINK APOPHYLLITE, CHESSYLITE, EMERALDS on MATRIX, 
PYROMORPHITE (very rare Form), CERUSSITE, CRYSTALL- 
ISED MALACHITE, and BOTRYOIDAL CHALCEDONY, ME- 
Re SONS and STONES. POLISHED AGATES and LABRA- 
A Large Series of ROCKS, also MICROSCOPIC SECTIONS of the 
same. 
Lists on Application. 
PRIVATE LESSONS AND EVENING CLASSES. 
BLOWPIPE CASES AND APPARATUS. 
SAMUEL HENSON, 
277, STRAND, LONDON. 
Opposite Norfolk Street. 
SIX PRIZE MEDALS 
=| AWARDED FOR GEOLOGICAL COLLECTIONS. 
Geological Collections especially adapted for Teaching as supplied to Science 
and Art Department, and used by all Lecturers and Teachers in 
Great Britain, &c. 
New and Rare Minerals constantly arriving from all parts for selection of 
Single Specimens. 
ROCK SECTIONS AND ROCK SPECIMENS: 
The Largest Variety in England. 
New Catalogues and Lists onapplication to— 
JAMES R. GREGORY, 
88, CHARLOTTE STREET, FITZROY SQUARE, LONDON. 
Established 27 Years in London. 
Hammers, Chisels, and Hammer Straps. 
Catalogues free. 
On the rst of every Month, price Sixpence. 
THE ENTOMOLOGIsT: 
AN ILLUSTRATED JOURNAL OF BRITISH ENTOMOLOGY. 
Edited by Joun T. CarrincTon, 
With the Assistance of 
FREDERICK Bonp, F.Z.S. Joun A. Power, M.D. 
Epwarp A. Fircn, F.L.S. J. JENNER WEIR, F.L.S. 
F. BucHanan Wuite, M.D. 
Contains Articles by well-known Entomologists on all Branches of the 
Science; on Insects injurious or beneficial to Farm or Garden; Notes on 
Habits, Life-Histories; occurrence of Rarities, &c.; there are Monthly 
Lists of Duplicates and Desiderata. 
Numerous Woopcut IL.tusTraTIONS, to the printing of which especial 
attention is given, and occasional LirHoGRAPHED and CHRomo-LiTHo- 
GRAPHED PLATES. 
'SIMPKIN, MARSHALL, & CO., Stationers’ Hall Court. 
| 
LIVING SPECIMENS FOR THE MICROSCOPE. 
GOLD MEDAL awarded at the FISHERIES EXHIBITION to 
THOMAS BOLTON, s7, NEWHALL STREET, BIRMINGHAM. 
who has last week sent to his subscribers Hydrobia ulva, with spawn and 
sketch. _ He has also sent out Leptodora hyalina, Argulus foliaceus, Argulus 
coregoni, Macrothrix roseus, Moina rectirostris, Lophopus crystallinus, 
Plumatella repens, Cordylophora lacustris, Spongilla fluviatilis, Asplanchna 
Ebbesbornii, Melicerta ringens, Volvox globator; also Hydra, Vorticella, 
Ameeba, Crayfish, and other Specimens for (Huxley and Martin’s) Biological 
Laboratory work. 
Weekly Announcements will be made in this place of Organisms T. B_ is 
supplying. 
Specimen Tube, One Shilling, post free. 
Twenty-six Tubesin course of Six Months for Subscription of £1 15., 
or Twelve Tubes for 10s. 6d. 
Portfolio of Drawings, Ten Parts, 1s. each. 
EDWARD WARD has pleasure in an- 
nouncing the issue of a new Micro-Slide of Zoophyte, with tentacles 
out, in the special manner so well known to his numerous patrons. 
eas 
(post-free) 2 8 
Plumularia similis... 
Also, quite new :— 
Gorgonia verrucosa (polype stained) ,, 2 2 
Podalirus typicus (Spectre Shrimp) mi x 2 
EDWARD WARD, 249, OXFORD STREET, MANCHESTER. [503 
INTERNATIONAL HEALTH EXHIBITION. — 
DIVISION—EDUCATION. % 
A PRIZE MEDAL AWARDED TO 
THOMAS D. RUSSELL, 
78, NEWGATE STREET, LONDON, E.C., 
For Geological Collections for Science Teaching 
Catalogues Post free. 
SCIENCE AND ART DEPARTMENT 
50 PER CENT. GRANT FOR THE PURCHASE OF STANDARD 
COLLECTIONS AND APPARATUS FOR TEACHING GEOLOGY 
AND MINERALOGY. NEW LISTS and FORMS on which the 
Application is to be made supplied by 
THOMAS J. DOWNING, 
Geologist, &c., 
8, WHISKIN STREET, LONDON, E.C. (over Quarter of a Century). 
PATERSON & COOPER, 
76, LITTLE BRITAIN, LONDON, E.C. 
Electric Light and Power and Telephone Engineers. 
New Electric Light Catalogue, post free 1s. 
PATERSON & COOPER beg to give notice that they have disposed of 
the Philosophical, Educational, and Experimental Part of their Business to 
Messrs. J. and T. MAYFIELD, 41, Queen Victoria Street, E.C. 
LA SEMAINE FRANGAISE: a Weekly 
Newspaper and Review in the French Language. Politics, Literatur: , 
Science, Art, Varieties, Notes. Price 2d., through Booksellers, and at 
the Railway Bookstalls. Office, 441, Strand, W.C. 
LA SEMAINE FRANCAISE: Journal Frangais pour 
l’Angleterre : Politique, Littérature, Sciences, Arts, Variétés, Nouvelles. 
et Notes. Un exemplaire par la poste, 2}¢., en timbres poste. Abonne- 
ment franco par la poste—un an, tos. 10d. ; six mois, 5s. 5d. Prix 2a. 
chez tous les libraires et aux gares des chemins de fer. On s’abonne 
aux bureaux, 441, Strand, Londres, W.C. 
LA SEMAINE FRANCAISE.—“‘La Semaine Fran- 
aise” has been brought out in London for'the. benefit of those Englis) 
readers who may wish to study contemporary French from all points cf 
view, instead of confining their reading to one particular Gallic prints. 
It certainly merits success.”—Graphic.’ 
TERMS OF SUBSCRIPTION :— s @ 
Three Months ... ees & nc ave ow +2 @Q 
Six ” see - ove oa oie, 5S 
Twelve ,, Soe , nee a on soc XOMELG 
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Publishing Office, 441, Strand. W.C, 
