336 Asiatic Society. [No. 136. 



1 Map of Allygurh, on Drawing Paper colored. 

 1 ditto ,, Dehra Doon, ditto. 

 1 ditto ,, Mynpooree, ditto 



Mineralogical and Geological Department. — I mentioned in my report of February 

 the notice which I had incidentally received of the brilliant eruptions of the small 

 volcano of Kyook Phyoo, and that I had written to Mr. Howe for details and specimens. 

 These he has very kindly furnished, in replies to my queries, and a chest of specimens 

 of great interest, of which a selection is now on the table. 



I am busy examining these, and the results of my work will form a separate paper. 



It seems probable, that the mud and the grey shale are nearly the same substance' 

 and the grey shale and brick-red clay slate certainly are so ; for we have one specimen 

 which is grey shale at one end, and brick-red clay slate at the other, with the dark, half 

 calcined-shale in the middle, thus shewing that the inetamorphic process had just 

 reached so far. This is not uncommon where dykes have penetrated argillaceous shales ; 

 but I am not aware of any instance in which it is known to be actually going on as it 

 here appears to be, except that it may be supposed to be so in burning coal mines. 



Another remarkable singularity in these specimens, which I may briefly notice here, 

 is the low heat of the volcanic flame. Mr. Howe's letter says distinctly, that the station 

 at midnight was rendered as light as day by the flame from the volcano though at 3 

 or 4 miles distance ; and yet we find that the specimens from the sides of the crater are 

 barely calcined, and nowhere approach to fusion. There is no doubt, that the different 

 mud volcanos on Ramree are truly volcanic fumaroli,* as may be seen by reference to 

 Lieut. Foley's paper in Vol. iv. of our Journal, and the value of this fact consists in 

 the confirmation which it affords of Mr. Lyell's surmise as to the ancient volcanos of the 

 Eifel. I forbear further remarks here, as in our conclusions so much must depend 

 on the mineralogical character of the specimens which are yet under examination. 



We have received from Dr. Harlan, the splendid collection of casts of new Missouri- 

 an fossils, which is now on the table. His letter to our associate Dr. Huffnagle, who 

 has placed it in my hands as Officiating Secretary, is as follows : — 



Philadelphia, July 21, 1842. 



Dear Sir,— It is a long time since I have had the pleasure of hearing from you 

 directly, and an opportunity now offering from our port, I seize the occasion to 

 address you, and of forwarding through you, a collection of the casts of fossil bones 

 found in Missouri, and of which I have made a new genus of extinct quadrupeds ; a 

 printed notice of these bones accompanies them, as also some other specimens duly 

 labelled, which I beg the Asiatic Society to accept from me as a slight testimony on 

 my part, to the liberal manner they treat their foreign members. I have been absent 



* Though not affording sulphureous or saline exhalation. 



