. Gaseous exchanges in isolated muscle and the perfection of an apparatus for studying same . bber tubing or by the breath of the operator isquickly absorbed by the strong potash beyond. Each tube is com-pressed by a screw pinch-cock. By a delicate adjustment of thispinch-cock, the air current can be made to flow in a perfectlysteady stream. This simple arrangement was the most convenient The absorption titration system is imltiplied by four to .complete the double experiment apparatus as set up (photograph l);, each muscle chamber is connected v/ith two absorption photograph 1
. Gaseous exchanges in isolated muscle and the perfection of an apparatus for studying same . bber tubing or by the breath of the operator isquickly absorbed by the strong potash beyond. Each tube is com-pressed by a screw pinch-cock. By a delicate adjustment of thispinch-cock, the air current can be made to flow in a perfectlysteady stream. This simple arrangement was the most convenient The absorption titration system is imltiplied by four to .complete the double experiment apparatus as set up (photograph l);, each muscle chamber is connected v/ith two absorption photograph 1 that part of the apparatus included between thecentral white band AB and the shorter band GH includes one absorp-tion system complete. (The taller chambers shown in the right of,. the photograph were the first fom made and are not as convenientas the shorter ones shov/n on the left, and in photograph 2). illLilQILTSQL Apparatus A and B have similar air control systems: A is attached to the faucet at the sink, the aspirator of whichconnects with a half liter bottle. This serves. to catch the back flow of water whenever the faucet is closed(amounting to a few drops each time). The bottle is connected bya rubber tube to the gasometer, which is in turn connected by aspecial arrangement with one of the apparatus, for instance A, By means of two Y tubes and three one-way cocks, the latterclamped near the foot of the left steel support,the suction is dis-tributed to either absorption chamber 1 or 11 of A,or the neg-ativepressure may be reduced at will,even to zero, by opening the cock 1(see diagram 5). This gives the path of least resistance from theatmospheric air to the aspirator. With the water flowing,all suc-tion in apparatus A can be stopped at once by opening 1. V>/ith 1closed, the suction may be thrown into either or both absolutionchambers, by means of the cocks 2 and 3. The position of these - 27 - cocks is within eash reach of the operator.#l--Opens to air of
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmuscles, booksubjectt
