BAIRD &TATLOCK (LONDON) LTD. 



1380 

 Swift's " Research " 



1382 



Microscope. 



This instrument was designed to meet the special requirements of advanced workers in all branches of scientific 

 research, particularly bacteriology and analysis. 



The coarse and fine adjustments and general construction of this instrument are as described above. The 

 mechanical stage, which is built in as an integral part of the stand, is of particularly strong and massive 

 construction. The large top plate itself moves in both directions, and its surface can be instantly entirely cleared 

 to accommodate a Petri or other dish. Scales reading by verniers to ^ mm. are fitted to both horizontal and 

 vertical movements. The top plate of the stage is so designed that it can never run foul of the condenser. 



1380 Stand as described, in mahogany cabinet, with the following accessories : 

 Objectives | in. N.A. 0.30 ; J in. N.A. 0.85 ; T \ in. oil-immersion N.A. 1.30 

 Oculars II. and IV. 

 Abbe Condenser with iris diaphragm and stop carrier, dustproof triple nosepiece 



1381' The same set as above, but without ^ in. oil-immersion objective 



Although the sets are quoted with in. and J in. objectives, the f in. may be replaced by a i in., or J in., and 

 the J in. by a J in. or J in. ; also any of the Huyghenian oculars I.-V. may be taken in place of those named. 



Swift's " Army " Microscope. 



The original instrument, of which this is a modern and improved form, was designed to meet the requirements 

 of Sir A. E. Wright, late of Netley Hospital. The War Office authorities have selected it as one of the standard 

 microscopes for the Army Medical Department. 



The coarse and fine adjustments and general construction of this stand are as described above. It has a 

 very large plain stage, which will easily accommodate a full-sized Petri dish. The stage is engraved with a Wright's 

 Finder for instantly re-locating any particular part of a specimen. 



1382' Stand as described, in mahogany cabinet, with the following accessories : 

 Objectives f in. N.A. 0.30 ; J in. N.A. 0.85 ; ^ in. oil-immersion N.A. 1.30 

 Oculars II. and IV. . . . . 



Abbe Condenser with iris diaphragm and stop carrier, dustproof triple nosepiece 



1383' The same set as above, but without T V in. oil-immersion objective 



Although the sets are quoted with in. and J in. objectives, the in. may be replaced by a i in. or J in., and 

 the \ in. by a j in. or in. ; also any of the Huyghenian oculars I.-V. may be taken in place of those named 



21 



16 



1384" Attachable Mechanical Stage, horizontal range 3 in. 

 1385' 2 in. 



For " Army " 

 Microscope 



extra 



18 

 13 



350 

 2 10 



277 



