PRICE OF INSTRUMENTS AND APPARATUS 141 



No. Page 



3466 — Collecting bottles, 3 inches x 1 inch , 



3467 — 3 inches X J inch 



3468 — 2 inches x f inch 



3469 — If inch x i inch 



SUNDRY APPARATUS 



3279 67 Glass plate ruled in squares . 



3277 67 Stage micrometer with engraved scale. 1/10 and 



1/100 of a millimetre 



3278 67 Stage micrometer with engraved scale, 1/100 



and 1/1000 of an inch 

 3276 68 Eyepiece micrometer, glass plate to fit into 



eyepiece ....... 



3480 67 Glass scale with 100 divisions etched on in milli 



metres for use in making drawings 

 Cross- wire for eyepiece .... 

 Beck micrometer eyepiece 

 Beck horizontal camera lucida 

 Beck vertical camera lucida. 

 Abbe camera lucida .... 

 Simple type of Abbe camera lucida 

 Drawing table ..... 

 Iris diaphragm to fit between object glass and 



nosepiece. ..... 



Polariscope for use on microscope . 

 Photomicrographic camera, vertical type, with 



one dark slide, J-plate size 



— — Extra double plate-holders . 

 3340 75 Photomicrographic camera, horizontal type 



J-plate size, with one dark slide . 



— — Extra double plate-holders . 

 3343 75 Focussing glass ..... 

 3483 ' 63 Handcentrifugewithtwotest-tubesinaluminium 



covers ....... 



10 6 



12 6 



12 6 



10 6 



10 G 



5 

 2 2 



1 17 6 



2 10 

 4 5 n 



3 3 

 15 



1 15 

 3 10 





 



3 3 



13 6 



8 15 



13 6 



15 



3 3 



