Ureameter burette with cardboard box from Dr. Squibbs apparatus for estimation of urea in urine, supplied by W. Martindale, 10 New Cavendish Street, London, W1, England. Ureameter burette with box from Dr Squibbs type ureameter 1850-1920
Ureameter, Doremus, modified, by Hind, glass, European, 1890-1904 Ureameter, Doremus, modified, by Hind, glass, European, 1890-1930 1890-1930