With the addition to the present light car of a still lower gear and the attachment to the wheels of suitable gripping devices there is no reason why the future doctor's car can not wade through snowdrifts quite as deep as his horse could haul him through and in better time. I believe, writes Dr. P. E. Doolittle, in The Automobile, that within the next two years the doctors will demand such an all-the-year-round vehicle, and there are no obstacles in the way of the manufacturers meeting such demand.
The Auto in Winter.. JAMA. 2006;296(17):2153. doi:10.1001/jama.296.17.2153-c
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