Lectures on nervous diseases from the standpoint of cerebral and spinal localization, and the later methods employed in the diagnosis and treatment of these affections . means of per-forated straps (Gray) or an India-rubber cap similarly perforated. Theeffect of the temperature of the air upon the mercury may be avoidedby coating the parts not in contact with the scalp with Fig. 71.—Thermo-electric Differential Calorimeter.—Connect the two thermostats asshown in figure, viz.: connect by means of one of the metal tipped cords one binding-post ofeach of the thermo-piles to the two bind


Lectures on nervous diseases from the standpoint of cerebral and spinal localization, and the later methods employed in the diagnosis and treatment of these affections . means of per-forated straps (Gray) or an India-rubber cap similarly perforated. Theeffect of the temperature of the air upon the mercury may be avoidedby coating the parts not in contact with the scalp with Fig. 71.—Thermo-electric Differential Calorimeter.—Connect the two thermostats asshown in figure, viz.: connect by means of one of the metal tipped cords one binding-post ofeach of the thermo-piles to the two bindinsj-posts on base of the galvanometer. Then con-nect the two remaining posts, one on each of the thermo-piles with each other. After sodoing, place the thumb on the face of one .if the thermo-piles and observe the direction of thedeflection of the galvanometer needle, then place thumb on face of the other thermo-pile, , leaving the first uncovered, and, if the deflection is in the opposite direction to that first ob-tained, the instruments are properly connected. If, however, the second deflection is insame direction as obtained by pressing thumb on first thermopile, disconnect the two cordsfrom either thermo-pile and interchange them, viz.: take cord from right-hand post andplace in left, and cord from left post and place in right-hand post : the deflections will thenbe


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Keywords: ., bookcentury1800, bookdecade1880, bookidlecturesonne, bookyear1888