492 ENTOMOLOGICAL SOCIETY 



cattle tick, and on all large ranches men are employed especially 

 to treat this insect continuously. He had seen a skin pocket on 

 a steer which contained more than 100 larvae. It is easy to treat 

 such cases either with crescylic acid or some other wash, and 

 they may be often washed out with water. In the case mentioned 

 he washed the maggots out with water with the most perfect ease. 

 What is needed, howevei*, to prevent immediate reattack by the 

 flies is some wash with collodion or something which will imme 

 diately dry up the sore surface so as to not attract the flies. 



Dr. Gill showed a book on natural history which he had stud 

 ied when a boy 8 years of age, and which, while very crude and 

 very inaccurate, had at that time possessed great interest to him. It 

 was entitled, "A Natural History of the Most Remarkable 

 Quadrupeds, Birds, Fishes, Serpents, Reptiles, and Insects," by 

 Mary Trimmer, Boston, S. G. Simpkins, 1845. He called at 

 tention to many curious classificatory statements in the book, for 

 example, showing that one tortoise was included among the quad 

 rupeds, another among the reptiles, and a third among the fishes. 



Mr. Currie then read a paper entitled, " Some Rare Odo- 

 nata from Washington and Vicinity." He exhibited and com 

 mented upon 9 different species which he considered rare, stating 

 that 65 species in all have been found in the District of Columbia. 



In discussion, Dr. Gill stated that in his opinion the sub-orders 

 of Odonata established by Dr. Calvert are misnamed " sub 

 orders " He would give them super-family rank, and considered 

 that their separating characters were by no means of sufficient 

 importance to entitle them to the term sub-orders. Groups of 

 that value should approach much more nearly to ordinal rank. 



NOVEMBER i, 1900 



The 1 55th regular meeting was held at the residence of Mr. 

 Wm. H. Ashmead, 1825 Q^ st. N. W. President Gill occupied 

 the chair, and Messrs. Chittenden, Heidemann, Chapin, Dyar, 

 Busck, Morris, Waite, Johnson, Currie, Caudell, Ashmead, How 

 ard, Pollard, Marlatt, Benton, De Schweinitz, and Hay, also 

 present. 



Under the head of Short Notes and Exhibition of Specimens, 



