MICROSCOPES 
MICROTOMES 
AND 
ACCESSORIES 
NEW ELECTRIC MICROSCOPE 
LAMP 
Descriptive Pamphlet on application 
REPAIRS, Optical and Mechanical, 
to any make of apparatus 
OGILVY & CO. 
18 Bloomsbury Square, 
LONDON, W.C. 
British Agents for E. LEITZ 
SCIENTIFIC APPLIANCES , 811 m [ a 0 t r erlals Electrical, Magnetic, & Experimental Work | 
We do not specialize in Microscopical parts or apparatus ; but every Scientific Microscopist I 
requires varied Lenses, Prisms, Electric Lamps, Insulated Wires, Ebonite, Metals in I 
Tube, Sheet or Rod, Screws, Cabinet Work, Insulating Materials, Batteries, Coils, I 
etc. etc. We have the experience of 50 years. Write us or call, and you will find a store for I 
all Scientific Work. New List, 6 cl., post free. Second-hand and Supplements to list 2 stamps. I 
SCIENTIFI^APPLIANCE^^al^^lMlins)^^^2^SicilianAvenue^ondonAALC^| 
SCIENTIFIC BOOKS AND SERIALS 
WHELDON & WESLEY, Ltd. 
Have the largest stock in the country of Books in all departments of Science and Natural 
History, also Transactions and Journals of Learned Societies, etc., in sets, runs, and single 
volumes or numbers. 
LARGE STOCKS OF BOOKS IN ALL BRANCHES OF MICROSCOPY. Quotations on application. 
Libraries or small parcels purchased. 
WANTED 
QUARTERLY JOURNAL OF MICROSCOPICAL SCIENCE. 
Sets or Runs. 
2, 3 and 4 ARTHUR STREET, NEW OXFORD STREET, W.C.2 
Telephone: GERRARD 1412. 
