up were found this big jaw cannot therefore evidently belong to our animal, having been deposited at a later period geologically. What you write about the discovery of the big carvical vertebrae three feet in length is very interesting. In the matter of length these vertebrae suggest that your surimse that they may belong to Marsh's Barosaurus is correct. But who knows? They may be the vertebrae of Riggs's Brachiosaurus. The German Paleontologists have fallen in with the suggestion which I made a couple of years ago before the paleontological Society, in a paper which I read, that their big beast is a Brachiosaurus The cervical vertebrae of Brachiosaurus brancai of East Africa are reported by them as being over four feet in length. "Deutschland uber alles!" I cannot take the tiem to say anything more this morning, but wish you great success and hope you will send us by freight such material as you may have succeeded in recovering which bears closely upon the problem of the skull which we are at present discussing. With very kind regards, I am, Yours very truly, Director