the f amrriogE AND PAUL INSTRUMENT CO., LTD. 
Head Office 
and 
Showrooms : 
45 Grosvenor Place, 
London, S.W.l. 
g Microtomes 
“THE ROCKER" 
is a simple, 
rigid, indestructible 
instrument of 
moderate cost. 
Further particulars are contained in 
our list No. E 182 , which will be sent on request. 
are now 
Many hundreds 
in constant use. 
LEWIS’S CIRCULATING LIBRARY 
MEDICAL, TECHNICAL 
AND 
SCIENTIFIC LITERATURE. 
Annual Subscription, 
Town : ‘or Country, 
from One Guinea, 
according, to number of 
Ivolumes required 
at one time. 
H. K. LEWIS & CO. Ltd., Scientific Booksellers, 136 Gower St. & 24 Gower Place, London, W.C.l 
: 
MICROSCOPES CAMERAS ACCESSORIES 
New and secondhand, latest models, largest selection in London 
Personal inspection inyited as stock is constantly changing 
DOLLOND 35 LUDGATE HILL 
10 Old Broad Street, E.C.2 
r , ,. J G ° T \°£ iCia ? S . • 12 George Street, Croydon 
hstabd. nearly two Centuries 
Doll on cl's will BUY for cash or accept in EXCHANGE for other goods 
which will be sent on seven days’ APPROVAL. You may purchase by 
EASY PAYMENTS if desired. Write for our Bargain List— hundreds 
of Instruments to select from. It is worth perusal — is sent gratis — and 
WILL SAVE YOU FROM 25 TO 50 PER CENT. 
211 OXFORD ST. 
61 Brompton Road, S.W. 
2 Northumberland Avenue 
35 LUDGATE HILL 
10 Old Broad Street, E.C.2 
12 George Street, Croydon 
Dollond’s pay high prices for first-grade modern Instruments 
