Ixxvii 



Exchanges received were laid upon the table. 

 The Corresponding Secretary laid before the Academy a com- 

 munication from Dr. G. A. Maack, of the Museum of Compara- 

 tive Zoology at Cambridge, Mass., asking for the loan of certain 

 specimens of fossil mammalia in the possession of the Academy, 

 with permission to make casts of them. 



Dr. Engelmann stated that the specimens referred to had been 

 destroyed in the late fire, with the exception of one choice speci- 

 men of the skull of Bos cavifrons, which the Secretary was in- 

 structed to place at the service of the Cambridge Museum. 



Mr. C. V. Riley presented for publication a paper by the late 

 Benjamin D. Walsh, deceased State Entomologist of Illinois, 

 entitled kt Descriptions of North American Hymenoptera." He 

 paid a feeling tribute to the author, and stated that as Mr. Walsh's 

 associate in the publication of the American Entomologist, sun- 

 dry manuscripts had been sent to him in the summer of 1870 by 

 Mr. Win. B. Pettit, who had charge of Mrs. Walsh's affairs. 

 These manuscripts were forwarded to Mr, E. T. Cresson, to be 

 deposited in the archives of the American Entomological Society, 

 of which he was then secretary. Among them, these descriptions 

 of Hymenoptera were found ready for publication, and, by re- 

 quest, Mr. Cresson, who makes a specialty of this Order of insects, 

 consented to edit the paper, and let it be published in the West. 

 He stated that it was written on both sides of the sheets, and from 

 numerous interpolations and additions, was evidently intended to 

 be copied ; but Mr. Walsh's writing was so peculiarly distinct 

 and careful, that the printer would have no difficulty in following 

 it; and he believed the paper would form a valuable addition to 

 the Transactions as it was to American Hymenopterology. 

 Referred to the Committee on Publication. 



Dr. Engelmann presented twigs of a new Pine, showing blos- 

 soms and young cones. This new species had actually been dis- 

 covered in South Carolina, which had been so thoroughly ex- 

 plored by botanists. The celebrated botanist of South Carolina, 

 Mr. S. Elliott, was evidently aware of its occurrence, but does not 

 seem to have been certain as to its distinctive character. Dr. 

 Engelmann proposed to name it Pinus Elliottii. It grows along 

 the coast under the influence of a saline atmosphere. The wood 

 is valuable for timber, and is used there. The tree is remarka- 

 ble for its long coarse leaves, which occur in 2s and in 3s, and for 



