102 



L. CASELLA'S CATALOGUE 



1102. Improved Magnifying Lens, being a combination of three lenses, mounted in 



tortoise-shell, for use together or separately, with diaphragm and large field 

 Coddington at opposite end, for suspension or the waistcoat pocket ( fig. 1102), 

 p. 100 13 6 



1103. Coddillgtoil Lenses^ of high magnifying power, very useful for opaque objects, as 



minerals, etc., in German silver (Jig. 1103), p. 100, 4s. 6d., 5s. 6d. and 076 



1104. STANHOPE LENSES, in German silver mountings, 3s. 6d. to . 056 



1105. Linen or Cloth PrOYCrs, to fold, for the pocket (fig. 1105), p. 100, Is. 6d. to 



5 6 



1106. WATCHMAKEES' EYE-GLASSES (Jig. 1106), p. 101, Is. 6d. to . 026 



JJ'IG. 1107. 



MICROSCOPES. 



In the following list of microscopes the desire has been not so much to describe the 

 most costly as the most useful and practical kinds. With this view every real improve- 

 ment has been adopted and described, whether as desirable refinements, or such as are 

 really required in the practical working and use of the instrument. The fact being kept 



