Jan . 1 ( J< >4 1 Notes from . Myt ological Literature 



43 \{ 



ous. Cultural work without such conjectures based on field ob- 

 servation* are largely a waste of time, rarely leading to any 

 positive information. The time to make observations is early 

 spring, when the rusts first begin to .show, mostly in April 

 and May. Simple record of proximity is not especially im- 

 portant. The observations must show that the inference is well 

 established, that the new growth of spores has come from germ- 

 inating spores of another sort found near by. The ability to 

 work out such an inference marks the logical and acute ob- 

 server. 



I <lesire to thank Messrs. Kellerman, Bates, Davis and Bar- 

 tholomew for providing teleutosporic material, and also Mr. 

 Ilolway for numerous favors. I have already mentioned the 

 kindness of Messrs. R. Douglas' Sons in providing host plants; 

 strong plants of Callirrhoe involucrata were sent by Mr. Barthol- 

 omew. My particular thanks, moreover, are due to the Botanical 

 Society of America for providing funds by which the work 

 could be prosecuted, not only in the laboratory but in the field. 

 The observations at Fair Oaks, Ind., by far the rnost important 

 of those made in a single locality, were rendered possible by the 

 society's generosity. 



Purdue University, Lafayette, Ind. 



