. Bulletin of the Natural History Society of New Brunswick. â iS BULLETIN OF THE NATURAL HISTORY SOCIETY. of rock, gravel and sand, with no mud. Its animal and plant life show some features of interest, worthy of more extended notice. It is noted for the immense trout it contains, a fact which I give from heresay, since my own numerous experiments upon this point yielded only negative results. It is locally reputed bottomless, but in the summer of 1895 Mr. S. W. Kain and I sounded it thoroughl}' and found its maximum depth to be seventy- eight feet; but this is a great depth for so small a lak
. Bulletin of the Natural History Society of New Brunswick. â iS BULLETIN OF THE NATURAL HISTORY SOCIETY. of rock, gravel and sand, with no mud. Its animal and plant life show some features of interest, worthy of more extended notice. It is noted for the immense trout it contains, a fact which I give from heresay, since my own numerous experiments upon this point yielded only negative results. It is locally reputed bottomless, but in the summer of 1895 Mr. S. W. Kain and I sounded it thoroughl}' and found its maximum depth to be seventy- eight feet; but this is a great depth for so small a lake. Its beaches, as a rule, slope down very suddenly, so that its average depth must be Fig. 1. Sketch map of Clear Lake. C = log camp. Scale about six inches to one mile. Last summer I was enabled b}- the courtesy of Pro- fessor John T. Stoddard, of Smith (college, Northampton, Mass., to bring to Xew Brunswick the Thermophone belonging to the department of phj'sics in the college. By this instrument, recently invented, temperatures can be read at any distance and in any position to which a metal coil can be sent. Its principle cannot be explained^ * It depends upon the fact t'lat the electrical resistance of metals varies with temperatu: e. Two pieces of (different) metals forming the " temperature coil " are connect d up as a " Wheatsione Bridge " and so witi' a special batterj- and telephone that the latter hums wjjile lesistances are luiequal and a current is passing through it. but becomes siieni as a slidmg contact equalizes tht» resistances, and a pointer then indicates upon a fcale the temperaiure in the distant coil. The inst^um^â ^t is very accurate, and temperatures can be read it is said to .1", though in a moving bont in a breeze about .25° is as one can read easily. It is made only by E. 8. Ritchie & Sons, of Brookline, Please note that these images are extracted from scanned page images
Size: 2034px × 1229px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthornaturalh, bookcentury1800, bookdecade1890, bookyear1896
