A laboratory manual of electrotherapeutics . Some of the time the animals used were rabbits and atother times guinea pigs. As soon as one or more littersof young rabbits or guinea pigs were old enoughto be separated from their mothers, they were di-vided into two bunches as nearly alike in age and weightas possible, and were carefully weighed. The twobunches were placed in conditions of living in all re-spects similar except that from five oclock in the eveninguntil midnight one bunch was placed in a cage (Fig. 50)made of the kind of wire above mentioned through whichan alternating fiv
A laboratory manual of electrotherapeutics . Some of the time the animals used were rabbits and atother times guinea pigs. As soon as one or more littersof young rabbits or guinea pigs were old enoughto be separated from their mothers, they were di-vided into two bunches as nearly alike in age and weightas possible, and were carefully weighed. The twobunches were placed in conditions of living in all re-spects similar except that from five oclock in the eveninguntil midnight one bunch was placed in a cage (Fig. 50)made of the kind of wire above mentioned through whichan alternating five ampere current, with the frequency ofalternations above mentioned was passing, and the otherbunch was placed in an exactly similar coil which was not OF ELECTROTHERAPEUTICS. I 5 5. connected with the current circuit. This plan was pursuedwith each group of animals selected until they had reachedtheir full growth, or from six to twelve weeks, accordingto the age of the animals at the commencement of the ex-periment. The laboratory notes co
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