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. 14S — Ceil.— This cell (shown here in the form of a battery) is not used in medi-cal practice, chiefly on account ot the fumes which arise from it If used in the mechanicalarts. It is a very expensive cell to employ. Dynamo machines have now taken the place ofGrove batteries to a very great extent. nam is immersed in nitric acid placed in a glass jai-. E. M. F. = The platinum is bent into an S-shape to in
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. 14S — Ceil.— This cell (shown here in the form of a battery) is not used in medi-cal practice, chiefly on account ot the fumes which arise from it If used in the mechanicalarts. It is a very expensive cell to employ. Dynamo machines have now taken the place ofGrove batteries to a very great extent. nam is immersed in nitric acid placed in a glass jai-. E. M. F. = The platinum is bent into an S-shape to increase its modifications of this cell have been made for use in mechanicalarts. The fumes arising from it are veiy objectionable. ATTACHMENTS TO A COMPLETE BATTEKY. 627. ^^S^aci^si Fig. H9.—Bunsens Cell.—Parts are representedas bitten away to show its arrangement : thecylinder of zinc (:;); a liorous cup (e/); and thecarbon (c) within it. Ihis cell is not employedin medical batteries, for reasons similar to thosegiven in connection with Fig. 148. Bunsen^s Cell (1840).—This is a modification of tlie Grove platinum is replaced by artificial carbon in the form of a hollowC3linder, and a cylinder of zincis bathed in dilute sulphuric M. F. = volt. ATTACHMENTS TO A COMPLETEBATTERY. Although it is not necessaryfor a general medical practitionerto have all of the attachments to abattery such as ^are employed byneurological specialists, still it isimportant that they be mentionedhere, and their uses most important attachments toa cabinet or fixed battery for officeuse only are a galvanometer, a rheostat, a thermo-electric diflerential calorimeter, a polarit}^ changer or commutator, and a variet} of rheophores and elec
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Keywords: ., bookcentury1800, bookdecade1880, bookidlecturesonne, bookyear1888
