BuL. U. S. B. F., 1908. 



Plate CXIV. 



Hg. I. Water glass ,l«ig„c,l by the writer to be used tor observ-ation or photography of objects uuder 

 water. The cover is shown at the left. e i- j j l 



Fig. 2.-Two-foot water glass suiiported on four legs and provided with screen 

 as used for studying and photographing larapr?ys (ia^'™ «■/«"'/) 



