NOTES ON APPARATUS FOR LOW TEMPERATURE RESPIRATION STUDIES

In the series of studies on respiration of apple twigs in relation to winter hardiness which is being conducted at this institution, apparatus which involves certain novel features and combinations of old features, has been used with such success as to induce the writers to publish a brief description of the various set-ups. The apparatus is most easily shown in the form of diagrams. Figures 1, 2 and 3 indicate in succession the air train through the various parts of the apparatus, and figure 4 is a wiring diagram. The legends, given in connection with each figure, describe the various parts.