1843.] Asiatic Society. 1117 



Capt. Boyes of the 6th Cavalry, who it will be recollected was proceeding on atrip to 

 the Himalayan Passes, and Was unfortunately compelled to return by the loss of all his 

 baggage down a precipice, has given us new cause to regret this most untoward acci- 

 dent, for he has sent us a most beautiful series of geological specimens as far as he 

 went; viz. a little beyond Melum, and I doubt not that when his Memorandum reaches 

 us, this little collection will be truly an ornament to our Museum. Capt. Boyes has 

 proceeded from the hills to Bundlecund, and I trust, that in that interesting route, he 

 will be able to enrich us farther. It is most certain that zeal and ability abound with 

 him, if he can only find time. 



Mr. Mornay has obliged us with an analysis of some of the singular Copper Ore 

 sent up from Round Island in Capt. Williams' second despatch, which though it may 

 be now read, should, I submit, in justice to that gentleman, have a separate place in the 

 Journal, for it is certainly a very curious one, and a natural amalgam little to be looked 

 for. The presence of the Mercury in the Ore would allow us to hope, that when better 

 acquainted with this most interesting spot, that valuable mineral may be found there- 

 abouts. Mr. Mornay finds it to be an alloy of Copper, Titanium, Mercury, Lead, 

 Cobalt, and Iron, in different proportions, the different pieces varying in their composi- 

 tion. 



Messrs. Weaver and Co. have been good enough to send us two fine specimens of 

 petrified palms from Upper India, the exact locality they have not yet been able to 

 ascertain for us. 



We have received the following letter from Dr. Tamnaw, of Berlin, reiterating the 

 offers of exchange of Minerals made by him in 1841. 



To Messrs. the Directors of the Bengal Asiatic Society, Calcutta* 



Berlin, Prussia, July 20, 1843. 



Gentlemen, — A long while before I had the honour to receive your kind and 

 esteemed letter, dated February 3, 1841, and I saw with great pleasure, that you 

 do not refuse my proposal for an exchange in Minerals and Fossils from Europe, and 

 particularly from Germany, for such mineralogical productions from the East Indies. 

 However, Gentlemen, you did not wish, that 1 may forward to you a first invoice, 

 as like as I did offer, because this part of your collections at the time were not so order- 

 ed for deciding what you may wish to receive, or what you may be in a state to give. 

 You promised at the same time to make an invoice to me in fine and well cristallized 

 Minerals from Hindostan, for which I should return such of Europe. 



I take the confidence, Gentlemen, to refer myself to your remembrance, and so 

 repeat the offer, which I made in my first letter. 1 should be exceedingly anxious to 

 enter with you in such a relation of exchange ; the science of Mineralogy may never 

 be studied without collections so large as possible, and particularly in a country so 

 large and so very unknown than yours it must be advantageous for the science, if the 

 common sense for it may be awaked by an augmentation of the public collections by 

 the productions of foreign countries. I repeat my offer to make to you a first invoice 

 in the manner and in the way, as I said it in my first letter, and I request you to 



* This letter is printed verbatim, being a record of proceedings. 



