Pietism and the origins of the American public health movement : a note on John H. Griscom and Robert M. Hartley / Charles E. Rosenberg and Carroll Smith-Rosenberg.

An historical, scientific, and practical essay on milk, as an article of human sustenance : with a consideration of the effects consequent upon the present unnatural methods of producing it for the supply of large cities / by Robert M. Hartley.

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