604 Proceedings of the Asiatic Society. [May, 



this Crab is nearly a quarter grown. An equally fine series is sent of 

 the common Gelasimus of the Bay, the half grown young of which 

 Crab I have taken from holes in the bank only a few miles below 

 Calcutta. We have received the same species from the Persian Gulf. 



3. From Capt. Thos. Ilutton, of Mussoorie, a large collection (the 

 majority, however, sent on loan, and for the purpose of illustrating a 

 paper which he has confided to my editorship), of the birds of Afgha- 

 nistan, with many also from the Deyra Doon, certain of which have 

 been presented by him to the Society's Museum. 



4. From J. W. Payter, Esq., the skeleton of an adult Tigress. 



E. Blvth. 



Report of the Curator Museum of Economic Geology for the month of 



April, * 



We have received so little in the way of contributions this month 

 that it is scarcely worth reporting upon, were it not to preserve the 

 regularity of our reports ; and my laboratory work of the month is not 

 yet sufficiently advanced to enable me to conclude any paper or report as 

 I desire. 



Geology and Mineralogy. — We have received from Captain Kittoe a 

 small box of specimens, but unfortunately without labels of any kind. 

 Some of them require examination and will be referred to in a future 

 report. 



Economic Geology. — Capt. Sherwill has presented us with a box of 

 specimens from the Mica quarries of Behar, of which he has promised 

 a note. They consist of the mica in plates of all sizes, with quartz, 

 felspar and tourmalin, and in one specimen small decomposing gar- 

 nets. 



Lieut.-Col. Ouseley has sent us a supposed mass of Coal from the 

 Mohun River, Sirgooja, but it is rather one of a good Coal-shale with 

 a vein of promising Coal running through a part of it. It is no doubt 

 a surface specimen. The Mohun is a tributary of the Sone, taking its 

 rise a little north of Sirgooja. The Sirgooja coal field is well known 

 by the labours of Col. Ouseley as reported by the Coal Committee. 



The thanks of the Society were unanimously voted for all contribu- 

 tions acknowledged as above. 



