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 . Fig. —Filleks C —This is thebest cell (in the opinion of the author)to use in connection with a permanentfaradaic machine. It is not welladapted for Fig. 146.—Siemens anu HAL^Kt;s Cell — I hiscell is very efficient, but it is expensive to repairwhen the battery becomes exhausted. It ishighly recommended by some European au-thorities for use in a cabinet or permanentoffice battery. In this country the


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 . Fig. —Filleks C —This is thebest cell (in the opinion of the author)to use in connection with a permanentfaradaic machine. It is not welladapted for Fig. 146.—Siemens anu HAL^Kt;s Cell — I hiscell is very efficient, but it is expensive to repairwhen the battery becomes exhausted. It ishighly recommended by some European au-thorities for use in a cabinet or permanentoffice battery. In this country the Leclanchccell is more favorably regarded. Siemens and Hahkes Cell.—This is a favoiite cell for medical bat-teries in Europe. It is a modification of the Daniells cell and isexpensive. A copper rosette is placed in a saturated solution of sulphateof copper at the bottom of the jar; this is covered with a porousdiaphragm packed with papier-mache, on which the zinc rests surroundedby water. Water is added to the battery from time to time, and alsocrystals of the sulphate of copper. This form of cell is very constant;but it is extremely difficult to repair when out of order. As a permanentbattery, such cells may last a long time with proper care ; but they oftendo not, as the cells may become impaired from a multitude of causes(poor


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Keywords: ., bookcentury1800, bookdecade1880, bookidlecturesonne, bookyear1888