TRANSPLANTING OP EASTERN OYSTERS TO WILLAPA BAY. 199 



1 p. m. It gradually increased from this time to 1.0111 at 7 j). m., 

 high water. The temperature was 47° F. On March 19 there was a 

 slight increase in density caused by a strong wind backing the waters 

 of the bay into the river, and the tide did not fall as low as on the pre- 

 vious day. Observations were continued on March 20 at Toke Point, 

 on the north shore of the bay. The specific gravity was much higher 

 than at any other station occupied, being 1.0205 at high water and 

 1.0141 at low water; temperature 47°. On March 21 the density was 

 1.0209 at high water, temperature 47°, and 1.0130 at low water, tem- 

 perature 46°. At Bay Center, opj^osite the mouth of Palux River, 

 on March 22, the density changed from 1.0182 at high water to 1.0110 

 at low water 5 temperature 46°. On March 23 and 24 at the same i)lace, 

 with lower tides, the density was found to be lower. On March 25, in 

 the channel of Palux Eiver, the surface density at low water was 

 1.0098 and at high water 1.0176. At a depth of 18 feet, high water, 

 the density was 1.0180; temperature in each case 46°. 



Before leaving Palux Channel Mr. Miller examined the deposit of 

 eastern oysters I had made there four months before. Eighty-three live 

 oysters were tonged up and only seven emi^ty shells. The condition of 

 the edges of their shells showed them to be growing. At Sealand on 

 March 26 the high-water density was 1.0173, with a temperature of 

 48°, and on March 27, 1.0152 at low water, increasing to 1.0176 at high 

 water ; temperature 48°. 



On March 28 at Oysterville the lowest surface density at low water 

 was 1.0164, and at a depth of 35 feet, 1.0165; temperature 49°. At 

 high water the surface density was 1.0178, and at 35 feet the same; 

 temperature 49°. On March 29 the low- water density was 1.0159, tem- 

 perature 48°; high water 1.0174, temperature 49°. 



At Sunshine on March 31 the density decreased from 1.0100 at 8 a. m. 

 to 1.0062 at noon, when it was low water. It then increased to 1.0108 

 at high water. On April 1 low-water density 1.0062, high water 1.0116, 

 temperature 49°. On April 3 the high-water surface density was 1.0106, 

 temperature 49°, and at a depth of 20 feet 1.0108. 



At High Point on April 2 the water was quite fresh, the density being 

 1.0033, temperature 49°; at higli water it was only 1.0084. On April 4 

 at high water it was 1.0081, at low-water 1.0027; temperature 48°. 



Surface observations made from the steamer between Sealand and 

 South Bend showed a low-water density of 1.0148; temperature 49°. 



In this work on Willapa Bay observations were as a rule made hourly 

 throughout the day. The specific gravities have been reduced to 15° C. 

 The specimens of water from below the surface were secured with the 

 Sigsbee water bottle. 



