Bryn Mawr College monographs . anengent to the anterior surface of the eye. The linear pile mea-ning at the slit and at the eye would thus be adequate alone forr purpose. Some additional advantage is gained perhaps byving two instruments to serve as a check on each other and byiasuring at three places instead of thermo-elements in both piles are of bismuth and silver,le Hnear pile consists of 20 elements joined in series. Thesements are in the form of wire, the bismuth mm. in-meter and the silver mm. in diameter. The total resist-i:e of the pile is ohms; the area of the r
Bryn Mawr College monographs . anengent to the anterior surface of the eye. The linear pile mea-ning at the slit and at the eye would thus be adequate alone forr purpose. Some additional advantage is gained perhaps byving two instruments to serve as a check on each other and byiasuring at three places instead of thermo-elements in both piles are of bismuth and silver,le Hnear pile consists of 20 elements joined in series. Thesements are in the form of wire, the bismuth mm. in-meter and the silver mm. in diameter. The total resist-i:e of the pile is ohms; the area of the receiving surface is:: 12 mm. In Fig. Ill this thermopile is shown drawn to scale,the lower right hand corner is shown a front view of the pile,e row of junctions in the center are the hot junctions orse exposed to the radiations to be measured. The rows onler side of this are the cold or unexposed junctions. Di-tly above is shown in detail the formation of a pair of hot-^ cold junctions. A bead of silver is used in welding the. 0| \® 01 1Ij o z lU ^ m\ <^l / /^\ \ 1® ®\ I V Li,./ 1 \@ £E 0 $1 d) \j
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Keywords: ., bookauthorbrynmawr, bookcentury1900, bookdecade1900, bookyear1901
