204 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



you take in such matters, and looking myself upon this stone fish-way 

 as a marked illustration how economically such work may be con- 

 structed, even in the wilderness, and also how many such falls obstruct 

 the passage of fish to extensive spawning-grounds, which could easily 

 and cheaply be removed or remedied by even unskilled labor, I am sure 

 that you will pardon, if not justify, my desire to place in the possession 

 of the chief of our guild all the facts and circumstances of what I am 

 fain to consider as an important and in many respects a remarkable work 

 of the kind. For the purpose of preserving to you the work for refer- 

 ence 1 will merely recapitulate: Height of falls, 41 feet; length of fish- 

 way, 192 feet; incline, 1 foot in 6 feet; width of rock cut, 10 feet; angle 

 of fish-way, 10° ;' bulkheads, 4 to 8 feet ; space between bulkheads, 5J 

 feet; openings in bays, 2 feet; depth of same, 4 feet; depth of fish- way, 

 4 feet. 



I will merely add that the rock excavations involved but little blast- 

 ing, but are mostly the work of the drill, gad, and pick, as their size and 

 form plainly indicate. 



Hoping that the matter contained in this may, in part, repay you the 



reading, I remain, 



Yours, most trulv, 



S. E. THROCKMORTON^, 



Of California Fish Commission. 

 Hon. Spencer F. Baird, 



U. S. Commissioner of Fisheries, 



Smithsonian Institution, Washington, D. C. 



NOTES ON A SHIPMENT, BY THE UNITED STATES FISH C'OMMIS- 

 SION, OF CAEIFORNIA SAliMON (ONCOKHYNCHUS CHOUICHA) TO 

 TANNER'S CKEEK. INDIANA, IN 1876. 



By TARLETOI^f H. BEAIV. 



On the 29th of December, 1876, the writer was sent from Mr. Clark's 

 hatchery at ^orthville, Mich., to Guilford, Ind., with 15,000 salmon-fry. 

 The fish were distributed in 8 milk cans, and I had one reserve can for 

 water. The day was cold and windy ; snow was drifting freely. The 

 temperature of the water in the hatchery was SSC" Fahr. 



I left Northville ac 2.45 p. m. On the way to Toledo, at 4..30 p. m., 

 the temperature of the car above the fish cans was 73° Fahr., while the 

 water in the cans was 37° to 38°. A drifting snow-storm delayed the 

 Flint and Pere Marquette trains ; but there was ample time in Toledo, 

 with a margin to spare, for mending a leaky water-pail. 



I took a train on the Indianapolis, Cincinnati and Lafayette road at 

 7.45 a. m., December 30, for Guilford. There was no loss of fish on the 

 way. Tbe highest temperature observetf in the cans during the trip was 

 41° Fahr., the lowest 33°, 



Dr. H. C. Vincent entertained me at his home and assisted in the plant- 



