230 REPORT OF NATIONAL MUSEUM, 1884. 



Stoney, Lieut. George. M., U. S. N. Collection of rocks and volcanic 

 ashes from the new volcano on Bogosloff Island. 



Steams, Silas. 2 fulgurites from Santa Rosa Island, Florida. 



Tilghman, Messrs. B. C. & R. A., Philadelphia, Pa. 400 pounds assorted 

 sizes chilled iron globules for stone sawing and grinding. 



True, F. W. 1 specimen jade from New Zealand. 



Turner, E. Y. Specimens beryl from Edgecornb, Me. 



Townsend, C. H. 1 specimen stalagmite marble from Baird, Oal. 



Tweedale, W. 2 specimens building stone. 



U. S. Geological Survey (Messrs. Gilbert and Russell). 400 specimens 

 rocks and tufas from Western States and Territories. 



TJ. S. Geological Survey (Prof. Lester F. Ward). 26 specimens rocks 

 and fossil woods from Montana. 



TJ. 8. Geological Survey (Cooper Curtice). 1 specimen rock. 



TJ. S. Geological Survey (L. C. Johnson). 12 specimens rocks and build- 

 ing stones. 



U. S. Signal Service. 11 specimens rock from Alaska. 



TJ. S. Light-Souse Board. Plate of window- glass abraded by sand. 



TJ. S. Geological Survey (S. F. Emmons). 16 specimens rocks from Col- 

 orado. 



TJ. S. Geological Survey (W J McGee). 4 specimens silicified wood from 

 the District of Columbia. 



TJ. S. Fish Commission. 1 specimen of building stone from Wood's 

 Holl, Mass. 



Watts, J. J. Calcareous incrustations from Arizona. 



WMrton, J. 1 specimen of pumice from Krakatoa. 



Wheeler, Lieut. George M. 1 specimen rock. 



Williams, Dr. George H. 10 specimens foreign rocks, in exchange for 

 other material. 



Williams, Dr. George H. 6 specimens rocks from near Baltimore. 



Wocsffel, C. F. 1 paper-weight composed of varieties of ornamental 

 stones from Russia. 



Of the list above given there are several worthy of a special notice. 

 Prominent among these is the series of rocks and tufas from Utah, 

 Nevada, and California received from Mr. I, C. Russell, of the U. S. 

 Geological Survey. The tufas and lavas are particularly interesting 

 and unique for exhibition material, and form a most valuable addition 

 to our exhibition series. The numerous specimens of volcanic ashes 

 and pumice received from Messrs. Wharton, Houghton, Bartlett, and 

 Marshall are also of great value, not merely from a lithologic stand- 

 point, but as conveying some idea of the character of the material 

 ejected from the volcauo of Krakatoa and the immense distances to 

 which it was carried by wind and ocean currents. 



The fulgurites received from Messrs. Abbott and Stearns are of in- 

 terest as showing the great heat imparted to the sand by the passage 

 through it of an electric discharge. Both these gentlemen added very 



