in December last, as an accompanying document to his message; and the second, the reply of A. Snowden Piggot, M. D., a distinguished chemist, to certain inquiries propounded to him upon this subject.hat I can impart.
I have the honor to enclose you a copy of a letter I addressed to Dr. A. Snowden Piggot, a distinguished chemist, who is familiar with the subject, and his reply. I am, very tial. I am, respectfully, your ob't serv't, George Minor, Com'dr for Chief of Bureau. Dr. A. Snowden Piggot, Richmond, Va. We copy below a letter from Dr. A. Snowden Piggot, on this important subDr. A. Snowden Piggot, on this important subject. This letter was dictated by one of inquiry from Captain George Minor, of the Confederate Navy. In the Captain's letter he alludes to the strait to which France was reduced for the want of nitreng matter as would make a hundred weight of nitre. Very respectfully, your ob't servant, A. Snowden Piggot, M. D., Chemist. Comdr. George Minor, Chief of Bureau Crd. and Hydr'y.
Upon an e