1913-14.] BOTANICAL SOCIETY OF EDINBURGH 241 



" Flatters " Microtome 

 Knife . 



Six Imbedding Tubes 

 Lamp . 

 Bull's-eye . 

 Microscope . 



Camera, with nozzle, 1 screen, and 

 dark slide .... 



Total 

 Modification, if adopted, about . 



A few inexpensive accessories would obviously be advan- 

 tageous, but these could be purchased as the work developed. 



EXPLANATION OF PLATE. 



Fig. 1. Section of camera and microscope showing the modification 

 described in the text. C, camera ; S, shutter ; E, eyepiece ; X, new 

 nozzle ; B. brass collar ; M, microscope tube. 



Fig. 2 shows the general arrangement of the light, bull's-eye, micro- 

 scope, and camera. 



Fig. 3. Photomicrograph, taken with the apparatus described, of eruss- 

 section of stem of Artocarpus integrifolia, Linn. f. 



Additional Mosses from West Ross-shire. By 

 James Stirton, M.D. 



(Read 9th April 1914.) 



During the last seven years I have spent considerable 

 periods in various parts of the ^Yestern Highlands and 

 Islands, mainly for the purpose of investigating the moss- 

 flora of these otherwise attractive regions. Some time 

 previous to this I had become, through correspondence, 

 interested in parts of the east coast of Xorth America 

 under nearly the same latitude as Great Britain. Even at 

 an early stage of this correspondence I was obliged to 

 confess, in spite of adverse criticism, that there were curious 

 similarities in certain divisions of the cryptogamic botany 

 of these opposite shores and, more recently, that there were 



1 Without nozzle the price is £1, lis. 6'd. 



