744 PROCEEDINGS OF THE ACADEMY OF [Dec 



December' 2 

 The President, Samuel G. Dixox, M.D in 'the Chair. 

 Seventeen persons present. 



December 9. 

 Mr. Arthur Erwin Brown, Vice-President, in the Chair. 

 Seven persons present. 



December 16. 

 J. Cheston Morris, M.D., in the Chair. 

 ', Eleven persons present. 



A paper entitled "Five New Species of Trachilomonas, " by 

 T. Chalkley Palmer, was presented for publication. 



Minerals from Santiago Providence, Cuba. — Mr. S. Harbert 

 Hamilton exhibited some of the minerals met with during his 

 recent explorations of portions of Cuba, and described the manner 

 of their occui-rence. He called attention to increments of raise 

 shown by the southern coast of Cuba from Maysi to Santiago de 

 Cuba (Puerto de Cuba). All along this coast are to be seen 

 remains of from three to five terraces, and around the harbor of 

 Santiago de Cuba are a series of amphitheatre -like benches, which, 

 with the Sierra Maestre, give a very peculiar and picturesque effect 

 to the landscape. These benches are fossiliferous, but the shells are 

 usually only represented by casts. 



This part of Cuba has unquestionably suffered an extensive sub- 

 sidence, possibly about the beginning of Tertiary time. The 

 peculiar shape of Santiago Bay is to be accounted for as an old 

 valley, which the sinking of the land has allowed the sea to 

 encroach upon. Since its submergence this portion of Cuba has 

 gradually been raising; the raised beaches attesting to the incre- 



