4G 
C. Small Stands. 
No. 
13 
14 
Stand VI. Fixed stage 60X70 mm {2'l2X^^U")' 
Illumination by plane and concave mirrors with universal mo- 
tion. Cylinder diaphragm with jacket fitted to the under surface 
of the stage by a bayonet joint; easily removed when very oblique 
light is required. This arrangement also permits of the illuminator 
No. 19 (of about 1,0 num. apert.) being inserted in place of the 
diaphragm. 
Coarse adjustment by sliding tube. Tube fitted with 
draw-tube. 
Fine a dj u s t m e n t by micrometer screw of new con- 
struction. 
This stand is made to incline (Fig. 11) 
Stand VII. in all respects as stand VI l)ut not inclinable. 
Substantially built for laboratory use. (Illuminator No. 19 appli- 
cable as in stand VI). (Fig. 12.) 
The extreme care exercised in the construction of the micro- 
meter adjustment of stands VI and VII renders them available for 
use with the highest dry powers. For immersion systems these 
stands cannot fairly be expected to be rigid enough, though, if 
particular care be taken even these lenses may be used in excej)- 
tional cases. 
Stands V, VI and VII cannot be subsequently fitted with 
rack and pinion adjustment in lieu of the draw- tube arrange- 
ment. All those who wish to spend a certain sum in making a 
first purchase with the intention of later on adding an immersion 
lens without having to undergo any extra- expenses occasioned by 
deficiencies in the stand, are therefore strongly advised to select 
one of the larger stands, i. e at least IV. 
The prices of stands do not include any optical or mechanical parts beyond 
those enumerated in the above specification. Suitable c ombinat i ons are com- 
piled at the end of the catalogue. 
