PLATE VII. 
Figure 48. — The seminal fluid of a ripe male oyster, mixed 
with water, and seen with a power of 80 diameters. Zeiss, a. 2. 
Figure 49. — Fluid from the ovary of a ripe female oyster, 
seen with the same magnifying power. 
Figure 50. — Seminal fluid of a ripe male oyster, magnified 
500 diameters. 
