Bryn Mawr College monographs . 0| \® 01 1Ij o z lU ^ m\ <^l / /^\ \ 1® ®\ I V Li,./ 1 \@ £E 0 $1 d) \j. I RADIOMETRY IN PSYCHOLOGICAL OPTICS 57 bismuth and silver wires together to form the junctions. Overeach of the hot junctions is fastened a receiving- surface of tin2 mm. broad and long enough for the successive pieces to the heat conducted to the cold junctions may rapidlyradiate and thus maintain a temperature difference between thetwo junctions as large and as constant as possible, a surface oftin of appropriate size is fastened also over each of the coldjunctions. In the
Bryn Mawr College monographs . 0| \® 01 1Ij o z lU ^ m\ <^l / /^\ \ 1® ®\ I V Li,./ 1 \@ £E 0 $1 d) \j. I RADIOMETRY IN PSYCHOLOGICAL OPTICS 57 bismuth and silver wires together to form the junctions. Overeach of the hot junctions is fastened a receiving- surface of tin2 mm. broad and long enough for the successive pieces to the heat conducted to the cold junctions may rapidlyradiate and thus maintain a temperature difference between thetwo junctions as large and as constant as possible, a surface oftin of appropriate size is fastened also over each of the coldjunctions. In the diagram are also shown the top and end viewsof the pile mounted for use. The pile is mounted on a flat metalbase which slides up and down in grooves constructed on theedges of the frame containing the analyzing slit for the spectro-scope. When in use it is lowered so that the analyzing slit opensdirectly upon the face of the pile. During the color observation,when not in use, the pile is raised to the upper part of the frame:lear of the slit, and is fastened by means of a small hook whichmgages the u
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Keywords: ., bookauthorbrynmawr, bookcentury1900, bookdecade1900, bookyear1901
