— 49 



29- Cobcea scandens. — Vaughan. 



50 seeds, in lo-inch seed-pans, planted flatwise, ^ inch deep. 

 No. I, profusely watered. 

 No. 2, sparingly watered. 



SOWN MAY 4, NOON. 



Epitome. — Here, as in the preceding test, rapidity of sprouting 

 is not markedly diflferent in the two ca.ses, but the total is twice 

 larger in the drier pan. 



CONCLUSIONS Drawn from the Tests with Different Quantities of Water. 



1 . The quantity of water applied to seeds under test may make 

 a remarkable difference in the results. * 



2. Sprouting is decidedly more rapid in tests which receive less 

 than the usual amounts of water given in green-houses. This is 

 markedly the case in all the tests, with the exception of three in- 

 different and comparatively unimportant instances, (Nos. 27, 28 

 and 29). 



3. Per cent of sprouting is much greater, as a rule, in the drier 

 tests. 



4. The addition of water above the amount to keep the earth 

 simply moist, is injurious. 



5. The wide differences between the results of the wet and moist 

 tests, are not necessarily due to the rotting of the seeds in the wet 

 tests. This is shown in the tests with cucumber seeds, (Nos. 18 

 and 19), in which the drier tests gave similar or even smaller totals 

 than the wet tests. 



