BAIRD &TATLOCK (LONDON) LTD. 



924-927 Stand C. 



928-931 Stand D. 



932-935 Stand F. 



924 T 



925' 



926' 



927' 



928' 



929 T 



930' 1 ' 



931' 



932 T 



Large Microscope C (I.eitz), somewhat smaller than A and B, with modified horseshoe toot. 

 The stand is inclinable. It has a centring and revolving stage, rack and pinion coarse adjust- 

 ment, new continuous safety micrometer movement with divided drum (each division 

 = 0.002 mm.), and a graduated draw-tube. It is equipped with a large substage (b) fitted 

 with rack and pinion and iris diaphragm with lateral movement. The condenser is inter- 

 changeable against a cylinder diaphragm. Triple nosepiece ; objectives 2, 4, 6, T V oil- 

 immersion, N.A. 1.30 ; eyepieces I, III, IV, V ; magnifications 29 1260 . . each 



Same Stand with Substage (b) ; triple nosepiece ; objectives 3, 6, ^ oil-immersion, N.A 

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



Same Stand with Substage (b) ; triple nosepiece ; objectives 3, 6, 8 ; eyepieces, I, III, 

 IV ; magnifications 51 691 . . . . . . . . . . . . each 



Same Stand with Substage (cs), swing-out condenser and conical iris-diaphragm ; 

 triple nosepiece ; objectives 3, 7, T ^ oil-immersion, N.A. 130 ; eyepieces I, III, IV ; magnifi- 

 cations 51 1050. . . . . . . . . . . . . . . each 



Large Microscope D (Leitz), differing from C. in the form of the stage only. The latter is of 

 the fixed square type. The stand is inclinable. The draw-tube is graduated in millimetres. 

 The coarse adjustment is effected by a rack and pinion, the fine adjustment by the new 

 continuous safety micrometer movement reading to 0.002 mm. The stand is fitted with 

 substage (b), like Stand C. Triple nosepiece ; objectives 3, 6, T \ oil-immersion, N.A. 

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



Same Stand, with Substage (cs) ; triple nosepiece ; objectives 3, 6, T V oil-immersion. 

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



Same Stand with Substage (c) ; triple nosepiece ; objectives 3, 6, ^ oil-immersion, N.A. 

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



Same Stand, with Cylinder Diaphragm, but without substage condenser. Double 

 nosepiece ; objectives 3, 7 ; eyepieces I, III ; magnifications 51 500 . . each 



Medium Sized Microscope F (Leitz). Stand with joint for inclining the body at 45, with 

 fixed square stage, horseshoe foot, coarse adjustment by rack and pinion, new continuous 

 safety micrometer movement, draw-tube with millimetre scale, condenser (c) with iris 

 diaphragm to slip into a sleeve attached to the underside of the stage. The condenser 

 and cylinder diaphragm are interchangeable. A ring below the iris diaphragm serves to 

 hold a ground glass or coloured disc. Triple nosepiece ; objectives 3, 6, T V oil-immersion, 



21 

 19 10 

 16 10 



18 15 



18 15 

 18 

 17 5 

 10 5 



N.A. 1.30; eyepieces I, III, IV ; magnifications 51 1050 

 933' Same Stand with Condenser ; triple nosepiece ; objectives 3, 6, 8 ; eyepiece 



magnifications 62 691 

 934' Same Stand, without condenser ; double nosepiece ; objectives 3, 7 



magnifications 51 500 



each 

 II, IV ; 

 each 



eyepieces I, III ; 

 each 



935\Same Stand, without condenser ; objectives 3, 7 ; eyepieces I, III ; magnifications 51 500 



14 15 

 11 10 



800 

 750 



CROSS STREET HATTCTrST GARDETST, E- C 



