254 ROCHESTER ACADEMY OF SCIENCE. [March 12, 



tions existing in interplanetary space. It is a mode of solar action 

 that is distinct and that must be considered by itself. The final out- 

 come of the temporary, subpermanent and permanent effects of the 

 electro-magnetic impulses thus originated and distributed is a mag- 

 netic system comprising within its scope the entire solar system and 

 depending upon the properties of matter rather than of an ether 

 simply. With this clue it becomes possible to trace out the modes of 

 action and reaction and transference of stores of electrical energy in 

 such manner as could not otherwise be done. Following this line of 

 investigation it is already becommg quite certain that electro-mag- 

 netic forces play a much more important part in the economy of the 

 solar system than has heretofore been supposed. The physicist who 

 has a clear apprehension of the nature of the properties of matter is 

 the coming man in astronomy. The geometer has had his day. The 

 present purpose will have been served if the proper method of attack- 

 ing the problems at issue and systematizing observations shall have 

 been indicated. 



The paper was discussed by several members. 



March 12, 1894. 



stated meeting. 

 The President, Professor H. L. Fairchild, in the chair. 

 A small number of persons present. 



The Council report recommended that a bill of F. A. Steward, 

 for drawing a map of Monroe County and vicinity, to accompany the 

 forthcoming Flora of Monroe County, be referred to two members, 

 with power to authorize payment. 



The report was adopted and the chair appointed Mr. J- Y. 

 McClintock and Professor A. L. Baker. 



Mr. J. Y. McClintock read a paper : 



SOME RECENT ENGINEERING PROBLEMS IN 

 ROCHESTER. 



Under revievv-s in departments of science Miss Florence Beckwith 

 presented the following notes, on Hybridity in Willows. 



The study of willows has always been attended with great diffi- 

 culty on account of the great variety of forms, and the extreme 



