PRACTICAL PHOTO-MICROGRAPHY. 57 



The end of the water-tap should have a thread by which may 

 be coupled on to it such conveniences as a rose, a rubber tube, 

 etc. If none of these conveniences can be had, the worker 

 must content himself with a jug of water, or a vessel with a 

 rubber tube provided with a tap or a spring clip, the vessel 

 being placed at some height, as on a chair standing on the 

 table. Convenient collapsible rubber sinks with waste pipe 

 can be had in Britain and probably in America. In photo- 

 micrography as in all things we must " Cut our coat according 

 to our cloth." 



A set of flat " developing dishes " are necessary and not ex- 

 pensive. Two of these, the proper size for the plate to be 

 used may be made of papier-mache or ebonite ; they should be 

 black. Two others, large enough to hold three or four of the 

 plates may be of porcelain and should be white. 



FIG. 18. DEVELOPING TRAY, 



Other dishes may be required for printing and other pur- 

 poses ; their uses will be seen as we proceed. 



Some filter funnels ; glass measures, say 10-oz., 2-oz. and 2 

 drams ; scales and weights; a drying rack, Fig. 19 ; and, as a 

 luxury, a washing trough, Fig. 20, may complete this branch 

 of the outfit, which a few dollars will cover. For those who 

 object to slightly stained fingers, a hook, Fig. 21, and a "pneu- 

 matic holder," Fig. 22, may be added. 



