LLOYD: GROWTH OF PROTOPLASM IN POLLEN TUBES 89 
alkalis* and a final analysis of their relations to growth must, as 
it will, include the behaviors of these emulsoids. Similarly in the 
animal body, so far as studied in these relations, it is impossible 
to analyze the phenomena, and to separate that which occurs in 
substances extraneous to the protoplasm (e. g., sarcolemma), and 
that which occurs in the protoplasm itself. 
* Long, E.R. Bot. Gaz. 59: 491. 1915; MacDougal & Spoehr, as above cited; 
Fischer, M. Oedema, тото. 
