Fbbruaey 27, 1903.] 



SCIENCE. 



357 



asking where you get the authority to make 

 such a statement. I suppose Mr. Hatcher 

 has never visited Dog Creek near the mouth 

 of the Judith River, or read Professor Cope's 

 paper on the Judith River region, with a cut 

 illustrating this valley of Dog Creek. I was 

 with the Professor when he made the sketch 

 from which the illustration was made. I 

 also know that the great bed of black shale 

 filled with beds of soft coal was called Fort 

 Pierre by Professor Cope, and that I found 

 several bones of Mosasaurs in it resembling 

 PlatecarpuSj that the buff-colored sandstone 

 on top was called Fox Hills by Professor 

 Cope. On top of these formations were the 

 Judith River Beds, in which we found great 

 numbers of the cast-off teeth of Dinosaurs. 

 I there found the new ray Myledaphus hipar- 

 titiis Cope, and many fragmentary shells of 

 Trionyx, etc. On top of all was a bed of 

 oysters. We got no complete bones, I believe, 

 here of Dinosaurs. The two new species I 

 found of Monoclonius were near Cow Island, 

 about fifty miles down the river. I write for 

 information. Is not Mr. Hatcher wrong in 

 his correction ? We found no Mosasaur bones 

 in the vicinity of Cow Island. Would not 

 the finding of these animals at Dog Creek 

 prove the Fort Pierre age? We have similar 

 deposits on top of the Niobrara in western 

 Kansas that contain many Mosasaurs." 



HEJniT F. OSBORX. 



A ^'EW Z)/F/S70.V OF THE UNITED STATES 

 GEOLOGICAL SURVEY. 



A NEW division, to be known as the Division 

 of Hydrology, has recently been organized 

 by the Hydrogi'aphic Branch of the United 

 States Geological Survey. The work of the 

 division will include the gathering and filing 

 of well records of all kinds, the study of ar- 

 tesian and other problems relating to under- 

 ground waters, and to the investigation of the 

 stratigraphy of the water-bearing and associ- 

 ated rocks. In addition to the gathering of 

 statistics relating to the flow, cost, etc., of 

 the wells, it is hoped in the future to give 

 especial attention to the geological features 



which govern, or which are related in any way 

 to, the supply of water. 



The division will be subdivided into two sec- 

 tions, the eastern and the western, the first em- 

 bracing the Gulf and Mississippi River states 

 and the states to the east, and the second em- 

 bracing the remaining (' reclamation ') states 

 and territories, or those having public lands. 

 The charge of each section has been assigned 

 to a geologist, the western section to Mr. N. H. 

 Darton and the eastern section to Mr. M. L. 

 Fuller. The ofiice details are in charge of Mr. 

 Fuller. 



The sections will be still further subdivided, 

 each state, or group of adjacent states, con- 

 stituting a district, in which the work of col- 

 lecting data and of the investigation of the 

 problems relating to underground water will 

 be in charge of a geologist employed for the 

 purpose. 



In the western section it is expected that 

 the study of the geological structure will be 

 followed by the sinking of wells by the sur- 

 vey, the aim being to test such of the arid or 

 semi-arid regions as appear to present condi- 

 tions favorable for artesian water, with a view 

 to their ultimate development for agricultural 

 purposes. 



SCIENTIFIC NOTES AND NEWS. 

 Dr. L. Emmett Holt, secretary of the board 

 of directors of the Rockefeller Institute for 

 Medical Research, has made a statement in re- 

 gard to its plans. In addition to the $200,000 

 given by Mr. J. D. Rockefeller in 1901 for 

 current uses, he has now given $1,000,000 for 

 land and buildings, and it is understood that 

 he is prepared to contribute such additional 

 means as the needs of the institution demand. 

 Dr. Simon Flexner, professor of pathology at 

 the University of Pennsylvania has been 

 elected director of the laboratory. 



It is reported in the daily papers that Mr. 

 Marshall Field has offered to erect a museimi 

 on the Lake Front Park, Chicago, which may 

 cost as much as $10,000,000. 



A BILL has been introduced at Albany at 

 the request of the State Commissioner of 

 Lunacy, appropriating $300,000 for the con- 



