42 



FIELD AND FOREST. 



far as I am acquainted with them, specimens of each of which I have 

 furnislied to the herbarium of the Potomac-Side Naturalists' Club, may 

 serve to make the subject more clear than has been done by the fore- 

 going enumeration. 



Normal Forms. 



Quercus imbricaria. 



" nigra. 



" falcata. 



" coccinea. 



Quercus alba. 



" obtusiloba. 



" bicolor. 



" prinus. 



" prinus, var. monticola. 



" prinus, var. accuminata. 



" phellos. 



coccinea, var. tinctoriar 



rubra. 



palustris. 



Hybrid Forms. 



Quercus alba-prinus. 

 '' bicolor-castanea. 

 " falcata-palustris. 



Quercus imbricaria-nigra. 

 " imbricaria-tinctoria. 

 " nigra-tinctoria. 



Lester F. Ward. 



' . Potomac-Side Naturalists' Club. 



October 4ih, (ig2d, meeting.) 

 The Secretary read a paper upon the alpine flora of the White INIoun- 

 tains, which will be found on another page. Mr. Ward exhibited a 

 scorpion from Utah, shaken out from the folds of his blanket. 

 Mr. Dodge described its method of killing flies, catching one in its 

 claws with great dexterity, and then bringing its sting up over its head, 

 and inserting it "where it could do the most good." 



Dr. Schaeffer called attention to the fact, that much of the wooden 

 pavement now being removed, is affected with dry rot, the micros- 

 cope revealing in abundance mycelium of various fungi, in the woody 

 tissue, in spite of the various processes to which the blocks have been 

 subjected. It was also noticed that the round cypress and cedar 

 blocks, are not thus affected, but are apparently as sound as when first 

 laid. The Secretary presented from the Interior Department, a copy 



