278 PROCEEDINGS OF THE ACADEMY OF [1890. 



September 2. 

 ]\rr. Thomas Meehan, Vice-President, in tlie chair. 

 Nineteen ])ersons i:)resent. 



A paper entitled " The Corals and Coral Reefs of the Western 

 Waters of the Gulf of Mexico," by Prof. Angelo Heilprin, was 

 presented for publication. 



September 9. 

 ]\Ir. Benjamin Smith Lyman in the chair. 

 Fourteen persons present. 



A paper entitled " Echinoderras from the iSTorthern Coast of 

 Yucatan and the Harbor of Vera Cruz," by J. E. Ives, was pre- 

 sented for publication. 



The death of Mr. William C. Henszey, Treasurer of the Academy, 

 on the 7th inst., aged 76 years, was announced. 



September 16. 

 Mr; Thomas Meehan, Vice-President, in the chair. 

 Nineteen persons present. 



Papers under the following titles were presented for publication : — 

 "New and Old Trochidfe." By H. A. Pilsbry. 

 " The Perisomic Plates of the Crinoids." By Charles Wachsmuth 

 and Frank Springer. 



September 23. 

 The President, Dr. Joseph Leidy, in the chair. 

 Forty persons present. 



Remarks on Ticks. — Prof. Leidy remarked that in his visit to 

 Beach Haven, N. J. to spend the summer, he found the mosquito 

 less numerous than usual, but in the earlier part of the season the 

 Tick more frequent. One day, in June, after ]iassing for a few yards 

 among some Myrica bushes he picked eight of themfrom his clothes. 



