REPORT OF COMMISSIONER OF FISH AND FISHERIES. XXV 



Following is a record of the meteorological observations made at the 

 station during the year : 



189C— July 



August . . . 



September 



October ... 



November 



December. 

 1897— January .. 



February . 



March 



April 



May 



Juue 



Mean temperatures. 



7 a. m. 2 p. m. 



64.71 

 61.02 

 53.45 

 40.27 

 34.02 

 17.77 

 13.81 

 15.09 

 24.55 

 37.13 

 49.14 

 55.54 



76.00 

 74.56 

 64.88 

 51.74 

 40.73 

 27.85 

 26.02 

 30.62 

 35.13 

 50.10 

 60.49 

 65.77 



Water. 



Hatchery, 

 inside. 



7 a. m. 2 p. m. 



68.98 

 69.28 

 62.78 

 53.08 

 44.73 

 34.74 

 33.56 

 33.66 

 34.11 

 37. 95 

 50.77 

 58.71 



71 77 

 72.23 

 65.05 

 55.15 

 46.15 

 35.45 

 34.19 

 34.82 

 35.77 

 40.98 

 53.06 

 60.92 



Head of feed- 

 trough stand. 



7 a. m. 2 p. m. 



63.55 

 64.05 

 59.83 

 52.18 

 45.70 

 37.92 

 36.65 

 35.34 

 35.87 

 38.72 

 48.70 

 54. 60 



67.35 

 68.40 

 63. 13 

 55.00 

 47.37 

 39.29 

 38.18 

 38.02 

 38.87 

 43. 42 

 52. 37 

 57. 82 



Rain- 

 fall. 



Inches. 



5.95 

 1.55 

 6.95 

 4.15 

 4.25 

 1.55 

 1.65 

 1.65 

 2.30 

 2. 35 

 3.90 

 3.00 



Snow. 



Inches. 



i 



18 

 9 

 Uh 



St. J()Iin.si5Ury Station, Ver.mont (J. W. Titcomc, Superintendent). 



A special appropriation for increase of the spring water supijly, 

 construction of reservoir, and general improvement to the grounds 

 having been provided, the work was undertaken early in the summer 

 under the direction of the superintendent. In order to increase the 

 water supply, the springs on the station property were developed by 

 excavating ditches into the hillsides. These were lined with 3-inch laud 

 tile, laid on hemlock boards and covered with stones and gravel. 

 Wooden boxes were set at the outlet of each ditch to catch the water, 

 from which it is conveyed through pipes connecting with the main line 

 to the reservoir. Much difficulty was experienced in making the exca- 

 vations on account of the laud containing quicksand and clay, which 

 also made it imi^ossible to obtain water free from sediment. The supply 

 secured by this means was about double the amount obtained under the 

 old system. During the rainy season the capacity of the springs has 

 averaged about 80 gallons per minute. 



In order to prevent the clogging of the intake at the dam in Sleepers 

 Elver, a deflecting wall 30 feet long, 6 feet wide at base, 4 feet wide 

 at top, and 6 feet high, was constructed. A framework of timber 

 inserted in the wall on the east side near the lower end and fastened to 

 tbe intake on the west side forms a recess for the water to pass through 

 into the intake. This recess is protected by a grating formed of iron 

 rods extending perpendicularly down through the framework. Below 

 the grating, between the jetty and the crib, a piece of 10-inch cast-iron 

 pipe was inserted, to be used for flushing during periods of high water, 

 when the entrance to the crib becomes filled with sediment. The 

 wooden gates connecting the two 8-inch pipe lines were replaced by 

 iron ones. 



A reservoir of 172,198 gallons capacity was constructed between 

 Emerson Falls and the hatchery, at an elevation of 83 feet. A much 



