( 322 ) 



on the surface of the distilled water with which this basin was 

 partly filled. The grains were therefore placed, as it were, on the 

 surface of the water. They were just moistened by it and were yet 

 sufficiently at the surface to get plenty of air, necessary for their 

 germination. Now it was observed regularly, after certain intervals, 

 how manv of the wheat-grains showed distinctly that their germination 

 had set in. 



The seed was considered to have germinated when the white 

 germ became visible through the broken seed-coat. 



We shall not detail the particulars we had to take into account 

 in these experiments, but summarize one of the experiments in a table. 



Efect of Chloroform on the Germination of Wheat-grains. 



TABLE VII. 



The seeds have been 



Of 200 seeds have germinated after 



From this table it appears that Chloroform 1 to 1000 and 1 to 

 10000 are detrimental to the rapidity of the germination, for after 

 15 hours the perceutages are 21 and 26,5 instead of 27.57o (the 

 average between 28 and 27), whilst after 27 hours the injurious effect, 

 at any rate of Chloroform 1 to 1000, still makes itself felt. 



Therefore an experiment was made with weaker Chloroform-solutions. 



Ejj'ect of Chloroform on the germination of wheat-grains. 



TABLE VIII. 



The seeds have been 



Of the 242 seeds have germinated after 



