

Figure l8, — Interior of the hatchery. Sea water is supplied to 

 each of the tanks individually and fills it from 

 the bottom and is drained from the top through an 

 overflow into a trough seen at right. A wooden 

 frame (standing in front) with cloth bottom for 

 holding eggs floats freely in each tank. 



Kigttre 19» — Interior of the laboratory shortly after its 

 construction in 1885. Laboratory tables and 

 other furniture were designed by Baird and 

 Verrill# 



