acting as observer. To give all of the tables compiled from my 

 individual work and the work of various observers would make 

 this report unnecessarily voluminous. I will, however, introduce 

 portions of tables to illustrate the two serious difficulties referred 

 to above, viz: sudden variations in the salinity and temperature 

 of the water resulting from the change of tide, strong winds from 

 the ocean, etc. It is with the expectation of finding some 

 locality, presumably at Yaquina Bay, which bay appears to offer 

 the best advantages, where the spawn may not meet with such 

 sudden changes, that tiie writer intends to continue and complete 

 during the coming summer the work begun last season. 



Oyster City, Yaquina Bay, seven and one-half miles from the ocean. 

 S denotes •&ih'iiJtJT, B, Bottom. 



The above extract from table serves to show the average salinity 

 at Oyster City during the summer ranging from 1.0145 to 1.022. 

 The average density of ocean water on our coast during tha 

 summer was found to be 1.025 at 50^ Cent. 



From a series of observation on water temperature (George 

 King, Observer), from June 28th to Aug. 3rd, the dates July 14, 

 15, IG, 17, 18 and 19 are here represented to show the sudden- 

 changes likely to occur during the spawning season. 



Oyster City; near planted oysters. S denotes surface, B, Bottom. ' 



