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JUST UUJBUISIIEO. 
NEW EDITION OF 
WATSON & SONS^ CATALOGUE 
Of Microscopes, Objectives, & Accessory Apparatus. 
It contains Instruments suitable for every class of investigation, many of quite new 
design, and fitted with every modern improvement. 
Everyone interested in Microscopy, and especially intending purchasers of Instru- 
ments, should see this new Catalogue. 
Forwarded post-free on application to 
W. WATSON & SONS, Opticians to H.M. Government, 
313, HIGH HOLBORN, LONDON, W.C., 
And 251, SWANSTON STKEET, MELBOURNE, AUSTRALIA. 
ESTABLISHED 1837. 
THE LUXURY OF PURE WATER. 
Messrs. W. & J. Burrow, of Malvern, bottle the Malvern Spring Water at the 
renowned Pure Spring as it issues from the Granite Eock, furnishing for public use a 
Still, Natural Table Water of unrivalled purity. 
Sent to all parts of the Kingdom in cases, carriage free. 
For a Sparkling- Table Water they recommend “Malvernia” as a special 
Alkaline Table Water, corrective, healthful, and delicious, either alone or with 
Wine or Spirit — “ Malvern Seltzer,” Soda, Potash, Lithia, and all otlier Malvern 
Waters of exceptional purity, all being prepared with the water of the same Pure 
Spring. 
W. & J. BURROW, THE SPRINGS, MALVERN. 
Patentees of “ The Slider ” Wine Bins. 
LEACH’S IjVipROYED 
LANTERN MICROSCOPE 
(PATENT APPLIED FOR) 
Has all necessary Fittings for Lantern Polariscope, surpasses all ordinary arrangements 
for Photo-micrography, and is recommended by the highest authorities for simplicity 
of construction and brilliant illumination. It is hoped the price will meet a wide 
popular demand. 
Full Particulars free from 
W. LEACH, 15, HOWARD ST., BURY NEW ROAD, MANCHESTER. 
HENRY CROUCH’S MICROSCOPES. 
INTENDING PURCHASERS of MICROSCOPES are 
invited to apply for a CATALOGUE, fully Illustrated, 
and giving full particulars of INSTRUMENTS of the 
LATEST CONSTRUCTION, devised for every class of 
investigation. 
BARBICAN OPTICAL WORKS, 66, BARBICAN. E.C. 
