clxxxvi 
SUNDAY LECTURE SOCIETY. 
President: 
W. B. CARPENTER, Esq., C.B., LL.D., M.D., F.R.S. 
Vice-Presidents : 
Professor Alexander Bain, LL.D. Right Hon. Lord MHobhouse, 
The Right Hon. the Earl of Dal- K.C.S.1. 
housie, K.T. Thomas Henry Huxley, Esq, 
Warren De La Rue, Esq., M.A., LL.D., Pres.R.S., F.L.S. 
DiC LeieRess Benjamin Ward Richardson, Esq., 
Edward Frankland, Esq., D.C.L., M.D., F.R.S. 
Ph.D., F.R.S. Herbert Spencer, Esq. 
dames Heywood, Esq. F.R.S., John Tyndall, Esq., LL.D., F-R.S. 
F.S.A. 
ST. GEORGE’S HALL, LANGHAM PLACE. 
The Opening Lecture next Sunday afternoon (October 18), at Four o'clock 
precisely, will be by Dr. ANDREW Witson, F.R.S.E., F.L.S., on ‘‘ Earth 
Sculpture ; a Study in Geology.” (With Illustrations.) 
Members’ Annual Subscription, 4£1—due October r. : 
For Tickets and Lists of the published Lectures apply (by letter), enclosing 
Remittance, to the Hon. ‘reasurer, Wm. Henry Dowvitie, Esq., 15, 
Gloucester Crescent, Hyde Park, W. 
Payment at the Door :— 
Admission—One Shilling (Reserved Seats), Sixpence, and One Penny, 
BEDFORD COLLEGE, LONDON 
(FOR LADIES), 
8 and 9, YORK PLACE, BAKER STREET, W. 
The SESSION will begin on THURSDAY, October 15. The Course of 
Instruction in Science is arranged to prepare Students for the Preliminary 
Scientific, Intermediate and Full B.Sc. Examinations of the University of 
London. For further particulars apply to the Hon. Src. at the College. 
B. SHADWELL, Hon. Sec. 
THE UNIVERSITY OF ADELAIDE. 
ELDER PROFESSOR OF MATHEMATICS AND 
EXPERIMENTAL PHYSICS. 
The COUNCIL invite applications for the above Professorship. Salary, 
#8oo per annum. The Appointment will be for a term of Five Years, subject 
to renewal at the discretion of the Council. Salary will date from March 1, 
1886, and the Professor will be expected to enter on his duties on that date. 
An allowance will be made for travelling expenses. Applications, with 
estimonials, should reach Sir ARTHUR BLyru, K.C.M.G., Agent-General 
for South Australia, 8, Victoria Chambers, Westminster, London, S.W., not 
jater than December 1, 1885. 
THE OWENS COLLEGE, 
MANCHESTER. 
The PROFESSO RSHIP of PHYSIOLOGY has become vacant through 
the resignation of Prof. Gamgee. Candidates for the Chair are invited to 
forward applications and testimonials, addressed to the Council of the Col- 
lege, under cover to the Registrar, not later than MONDAY, November 9 
next. Information concerning the terms and conditions of the appointment 
will be forwarded on application to Dr. Grernwoop, Principal of the 
College. 
HENRY WM. HOLDER, M.A,, Registrar. 
B.Sc. LOND. (INTERMEDIATE EXAM.). 
A Special Course has been organised for all the Subjects required for this 
Exam. in connection with the Eventnc Crass DErparTMENT, KING'S 
COLLEGE, LONDON, W.C. For full particulars apply to the SECRETARY 
at the College. 
CIVIL SERVICE COMMISSION.—Forth- 
coming Examination.—Assistant Examinerships in the Patent Office 
(21-25), October 23. Salary, £250 to £400. 
The date specified is the latest at which applications can be received. 
They must be made on forms to be obtained, with particulars, from the 
SECRETARY, Civil Service Commission, London, S.W. 
MATHEMATICS (London and Suburbs).— 
Students attended (at their own homes if they so prefer) by a High 
Wrangler, ‘frin. Coll., M.A. and F.R.S., on very reasonable terms.— 
X., 9, Dorville Road, Hammersmith, W. 
EDWARD WARD has pleasure in an- 
nouncing the issue of a new Micro-Slide of Zoophyie, with tentacles 
out, in the special manner so well known to his numerouspatrons. 
s. a. 
+» (post-free) 2 8 
Plumularia similis 
Also, quite new :— 
Gorgonia verrucosa (polypestained) ,, 22 
Podalirustypicus(Spectre Shrimp) ,, Xa 
EDWARD WARD, 249, OXFORD STREET, MANCHESTER. [503 
With numerous Illustrations, Crown 8vo, 3s. 6d. 
POLARISATION OF LIGHT. By W. 
SPOTTISWOODE, LL.D.,late President of the Royal Society, &c. 
New Edition. (Nature Series 
MACMILLAN & CO., LONDON. 
NATURE 
[ Oct. 15, 1885 
LIVING SPECIMENS FOR THE MICROSCOPE 
GOLD MEDAL awarded at the FISHERIES EXHIBITION to 
THOMAS BOLTON, 57, NEWHALL STREET, BIRMINGHAM, 
Who has last week sent to his subscribers Dero obtusa, with sketch and 
description. _He has also sent out Lophopus crystallinus, Cristatella 
mucedo, Fredericella sultana, Cordylophora lacustris, Asplanchna priodonta, _ 
Notommata spicata, Volvox globator, Desmids ; also Hydra, Amceba, Vorti- 
cella, Crayfish, and other Specimens for (Huxley and Martin’s) Biological 
Laboratory work. 
Weekly Announcements will be made inthis place of Organisms T. B. is 
supplying. 
Specimen Tube, One Shilling, post free. 
Twenty-six Tubesin course of Six Months for Subscription of £1 18 
or Twelve Tubes for 10S. 6d. 
Portfolio of Drawings, Eleven Parts, 1s. each. 
ICROSCOPIC OBJECTS FOR HIRE, 
Histological, Botanical, Geological, by the best Mounters. Let 
out on most moderate terms. Particulars of B. WELLS, Dalmain 
Road, Forest Hill. [302 
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. 
FERNERIES fitted up with Preserved 
Flowers, Foliage Plants, and Floral Decorations suitable for Drawing- 
and Ball Rooms, Churches, Chapels, Theatres, &c. 
Sundella, a PATENT Preparation for preserving FERNS (from 
Maiden-hair to the common Brake), GRASSES, FOLIAGE, &c., sent, 
securely packed in stout box (with full particulars) on receipt of P.O.O. 
for 8s. 
MADAME SUNDELL, 
4, SPUR STREET, LEICESTER SQUARE, LONDON. 
MINERALOGY AND GEOLOGY. 
PROFESSORS, COLLECTORS and VISITORS to LONDON are 
INVITED to INSPECT Mr. HENSON’S STOCK of CHOICE MINE- 
RALS, &c., &e. At the PRESENT TIME he has a PARTICULARLY 
FINECRYSTALLISED 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- 
TEORIC IRONS and STONES. POLISHED AGATES and LABRA- 
DORITES. 
A Large Series of ROCKS, also MICROSCOPIC SECTIONS of the 
same. 
Lists on Application. Hammers, Chisels, and Hammer Straps. 
PRIVATE LESSONS AND EVENING CLASSES. 
BLOWPIPE CASES AND APPARATUS. Catalogues free. 
SAMUEL HENSON, 
277, STRAND, LONDON. 
Opposite Norfolk Street. 
HOW & CO.’S 
Geological Transparencies for the Lantern. 
Descriptive Catalogue on Application. 
WALKER’S SPECIFIC GRAVITY BALANCE FOR ROCKS 
AND MINERALS. 
HOW & CO.’S POCKET MICROSCOPE LAMP, 8s. 6d. 
MICRO-PETROLOGY.—Sections of Pitchstones, Obsidians Granites, 
Syenites, Diorites, Gabbros, “Dolerites, Basalts, Tachylites, 4 rachytes 
Andesites, Porphyrites, Rhyolites, Lavas. Ashes, Gneiss, Schists, Lime- 
tones, &c.. price 1s. 6d. each, 
JAMES HOw & CO., 73, Farrincpon STREET, LONDON. 
The AUTOCOPYIST (from 20s.) furnishes excellent 
BLACK COPIES 
in Lithographic Style, of the ORDINARY WRITING (also Shorthan’ 
Arabic. te. NSKetches Music. Easy, Economical.—The AUTOCOPYIS! 
CO., 72, London Wall, London. 
