10 
Dr. Henri van Heurcks Microscope 
FOR HIGH-POWER WORK AND PHOTOMICROGRAPHY, 
W. Watson 
& 
Sons, 
313 HighHolborn, 
AS MADE BY W. WATSON & SONS TO THE 
SPECIFICATION OF Dr. VAN HEURCK 
OF ANTWERP. 
Full description of the 
above instrument, and 
Illustrated Catalogue c' 
Microscopes and Apj" 
ratus, also classified 
list of 40,000 Micro- 
scopic Objects for- 
warded [post free on 
application to 
LONDON, W.C. 
AND AT 
78 Swanston Street, 
Melbourne, 
Australia. 
ESTAB. 
1 837 . 
Awarded 28 GOLD and other Medals at the principal International Exhibitions of the W orld. 
Pitted with. Pine Adjustments of utmost 
sensitiveness and precision, not liable 
to derangement by wear. 
Has Hackwork Draw -tube to adjust Objec- 
tives to the thickness of Cover Glass. 
Can be used with either Continental or 
English Objectives. 
Pine adjustment to Substage. 
The Stand specially designed to give the 
utmost convenience for manipulation. 
As Figured (but without Center- 
ing Screws or Divisions to 
Stage), with 1 Eye-piece .. £18 10s. 
Also made with Continental form 
of Foot £18 
Without Hackwork to Draw-tube £16 
