BAIRD &TATLOCK (LONDON) LTD. 



915' Same Stand, with Substage (a), large mechanical stage, No. 1023; triple nosepiece ; 

 achromatic objectives, i. 3, 4, 5 ; fluorite objectives 7a, 8, 9, ^a oil-immersion, N.A. 1.32 

 and T V oil-immersion N. A. 1.32 ; huyghenian eyepieces, O, I, III, IV, V micrometer 

 eyepiece II ; magnifications 131400 . . . . . . . . . . each 47 5 



916' Same Stand, with Substage (a) ; Triple nosepiece, objectives 2, 4, 6a*, ft oil-immersion 



N. A. 1.30 ; eyepieces, O, I, III, IV, V ; magnifications 23 1260 .. .. each 26 5 



917' Same Stand, with Substage (a) ; triple noiepiece, objectives 3, 72*, 



N. A. 1.32 ; eyepieces, I, III, IV, V ; magnifications 51 1176 .. 



oil-immersion, 



.. each 26 5 



918' Stand with Substage (a), exclusive of objectives, eyepieces, and nosepiece . . each 15 

 This stand may, if preferred, be supplied with a horseshoe foot similar to that of stand B. 



919-923 STAND B. 



91 9 T Large Microscope B (Leitz). Inclinable, with hinged joint and clamping lever, with 

 circular revolving and centring stags. Coarsf adjustment by rack and pinion, new 

 continuous safety micrometer movement with divided drum (each division = 0.002 

 mm.). Draw-tube with millimetre scale. Large substage with hinged three-lens 

 condenser of N.A. 1.40 and cylinder iris diaphragm; mechanical stage, No. 1024; triple 

 nosepiece; objectives i, 3, 6a*, T Va* oil immersion. N.A. 1.32 ; eyepieces, O, II, IV, V; 

 magnifications 13 1176 .. .. .. .. .. .. each 29 10 



920 T Same Stand with Substage (a); triple nosepiece; micrometer eyepiece, No. 1028, 

 objectives 2, 4, 6, ft oil-immersion, N.A. 1.30; eyepieces I, III, IV, V; magnifications 

 29 1260 . . . . . . . . . . . . each 26 5 



921' Same Stand with Substage (aj ; triple nosepiece; objectives 3, 6, f.,, oil-immersion, N.A. 



1.30 ; eyepieces I, III, IV ; magnifications 51 1050 . . . . ... each 23 



922' Same stand with Substage (a) ; triple nosepiece ; objectives 3, 7a*, ft a* oil-immersion, 



N.A. 1.32 ; eyepieces O, II, IV ; magnifications 41 980 .. .. .. each 25 



923' Stand with Substage (a), exclusive of objectives, eyepieces, and nosepiece 



* 6a, ya and i' a a are fluorite lenses. 



14 



JCHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



19.5 



