10 
Or. Henri van Heurck's Microscope 
FOR HIGH-POWER WORK AND PHOTOMICROGRAPHY, 
W. Watson 
Australia. 
Pitted with .cine Adjustments or 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 Pignred (but without Center- 
ing Screws or Divisions to 
with 1 Eye-piece .. £18 10s. 
Also made with Continental form 
ofPoot .. .. £18 
Without Kackwork to Draw-tube £16 
Full description of the 
above instrument, and 
Illustrated Catalogue of 
Microscopes and Appa- 
ratus, also classified 
list of 40,000 Micro- 
scopic Objects for- 
wardedjpost free on 
application to 
AS MADE BY W. WATSON & SONS TO THE 
SPECIFICATION OF Dr. VAN HEURCK 
OF ANTWERP. 
313 HighHolborn, 
LONDON, W.C. 
IAND AT 
78 Swanston Street, 
Melbourne, 
Awarded 28 GOLD and other Medals at the principal International Exhibitions of the World. 
