In order to observe the respiration of single egg-cells it seemed desirable to construct a respirometer of greater sensitivity than those designed by Barcroft (1908) or Warburg (1926), or than that of any of the various modifications of these two instruments (Novy et al. 1925 ; Thunberg, 1905 ; Winterstein, 1911 ; Fenn, 19278 ; Fraps, 1930; and Krüger, 1934).

You do not currently have access to this content.