R. & J. BECK’S 
MICROSCOPES 
FIRST CLASS 
OBJECT 
GLASSES. 
MICROTOMES 
LAMPS. 
OBJECTS. 
CABINETS 
APPARATUS 
-wlalK- 
The Instrument as 
figured, with 2/3 & 1/6 in. 
OBJECT GLASSES, 
ABBE CONDENSER 
with 
IRIS DIAPHRAGM, 
packed in 
polished 
mahogany 
case, 
15 s. Od. 
DOUBLE NOSEPIECE 
6d. 
EXTRA. 
-Hicfrs- 
No. 29.— New Form CONTINENTAL MODEL MICBOSCOFE. 
FULL ILLUSTRATED DESCRIPTIVE CATALOGUE FREE ON APPLICATION, 
R. & J. BECK, 68 Cornhill, London, E.C. 
FACTORY: LISTER WORKS, KENTISH TOWN, N.W. 
