I.W. Rabinowitch, E.V. Bazin. A simple and accurate method for determining basal metabolic rates. An electrometric (katharometer) procedure. Can Med J, 1926, page 638.
From: Laboratory Manual of the Technic of Basal Metabolic Rate Determinations, Walter Meredith Boothby, Irene Sandiford, published 1920 W.B. Saunders. Page 43
From: Laboratory Manual of the Technic of Basal Metabolic Rate Determinations, Walter Meredith Boothby, Irene Sandiford, published 1920 W.B. Saunders. Page 36
System construction attributed to H.N. Elmer, 1135 Monadnock Building, Chicago, Ill.