205 



rednction (r.), or some dyin^ (-j-) coiild l^e ol)serve(l. r/. AVliolliei- tlie 

 sponge had grown very weakly ( — ), rathei' well (-{-) ov vigorously 

 (-[--[-). //. The colour of tlie sponge; for which I shall make use of 

 the following expressions, indicating the green colour witli decreasing 

 intensity: dark green > green > light-green > yellow-green > liglit 

 yellow-green > greenish > colourless. /. The number of tlie various 

 chlorophyll corpuscles present in the tissues: sub 1 that of the green 

 ones, sub 2 tliat of the ,, colourless ones with structure" (p. 42), 

 sub 3 tliat of the ,, colourless ones without structure" (,,vague shades" 

 excluded); always the number present in the whole microscopic pre- 

 paration, so in an almost equal volume of each sponge. As for the 

 meaning of I — XII, see pag. 14, j. The type to which the sponge 

 proved to belong during the experiment; in type I the green colour, 

 therefore also the number of green chlorophyll corpuscles, increases; 

 in type III the green colour and the number of green corpuscles 

 decrease; in type II the green colour remains constant as well as 

 the number of green corpuscles, or the green colour or the number of 

 green corpuscles changes a little by increase or decrease; in the last case 

 but one we may speak of a type IF; in the last one of a type IP". 



All experiments are mentioned; those belonging to one series are 

 placed together in one space. As for tlie discussion, see pag. 58 — 66. 



In this table has also been registered the behaviour of some colour- 

 less sponges, which had first been for some time in a suspension of 

 green chlorophyll corpuscles, which, therefore, had been purposely 

 infected with those corpuscles (see Table 7); viz. n" 246, 248, 254— 256 

 etc. For the discussion of these results, see p. 28, 50. 



