31 



the leaves are not always empty in the morning f. e. 

 On the 21 th. of Sept. 1899 it was found at 6 a. m. that; 



No. 304 contained exceedingly large quantities of alcaloid 

 30 



306 „ very little „ 



307 v ,1 » n )) 



308 „ much „ „ 



309 „ exceedingly „ „ 



310 „ pretty much „ „ 



311 was empty „ „ „ 



312 contained exceedingly „ „ 

 313 



In the preceeding night consequently but one of ten 

 leaves become emptied. 



Next day the resuit was somewhat better, yet many 

 leaves remained full. 



On the 22 nd. of Sept. 1899 was found at 6 a. m. 



No. 314 much 



315 nothing 



316 . . ,,. 



317 little 



318 very much 



319 little 



320 traces 



321 aothing 



322 pretty much 



323 exceedingly large quantities. 



Consequently 3 ont of ten leaves were empty. Tins of 

 course can hâve several reasons, one I believe to have 

 found in the considérable degree of coldness which can be 

 reached here at night. i 1 ) 



t, 1 ) The garden is situated at a heig.ht cf 4200 feet. 



