164 Scientific Intelligence. 



keen eyes were fresh from the western fossil beds, was entrusted 

 with the work. In two months he brought together a collection 

 in which were abundant dinosaurian remains associated with the 

 bones of other reptilian orders. 



The summers of 1889 to 1892 were spent in Converse County, 

 Wyoming, where Hatcher obtained a magnificent collection of 

 Ceratopsia material. One of the best known types of this group 

 is Marsh's Triceratops, now exhibited in the Yale University 

 Museum. Another notable dinosaur collected by Hatcher is the 

 Claosaurus, mounted at Yale by Professor Beecher after Marsh's 

 death. When the latter retired from his position of Vertebrate 

 Paleontologist of the United States Geological Survey, in 1892, 

 funds were no longer available for collecting on so extensive a 

 scale, and Hatcher severed his connection with the Yale Museum. 

 Shortly after, he became Curator of Vertebrate Paleontology and 

 Assistant in Geology at Princeton University. His work during 

 the following years won him the highest praise. In spite of 

 great hardships, he successfully made collecting and exploring 

 expeditions into the wilds of Patagonia. Neither ill health nor 

 accidents, such as the loss of his saddle and pack animals hun- 

 dreds of miles from any source of supplies, could daunt him, and 

 his work in the southern continent proved not only of the highest 

 value to the naturalist and paleontologist, but his chronicle of 

 these expeditions is also of great interest to the general reader. 



In 1900 he accepted the Curatorship of Vertebrate Paleontol- 

 ogy in the Carnegie Museum at Pittsburgh, which position he 

 filled with honor to himself and to the great improvement of his 

 department. Engaged by the United States Geological Survey 

 to continue Professor Marsh's work on the Ceratopsia, he had 

 nearly finished that difficult task, involving a careful study of the 

 material at Yale and at the National Museum, which he had him- 

 self collected years before. His talent and industry had already 

 won him an enviable position among paleontologists, and he had 

 just accepted the Curatorship of Vertebrate Paleontology in the 

 United States National Museum, when his untimely death occurred. 



Hatcher's reputation as a paleontologist rests mainly on his 

 work upon the fossil Reptilia, his principal contributions appear- 

 ing in the Memoirs of the Carnegie Museum, under the titles of 

 " Diplodocus Marsh," and " Osteology of Haplocanthosaurus." 

 His valuable treatise entitled " Oligocene Canidse " was published 

 in the same form. Latterly Hatcher developed considerable 

 talent as a stratigrapher, as is shown by his memoir on Haplocan- 

 thosaurus, the records of the Patagonia Expeditions, and by other 

 shorter publications, which is the more remarkable inasmuch as 

 many able paleontologists have shown little skill in this branch 

 of geology. 



Of marked avidity for the hardest work, and of quick and 

 accurate discrimination in his scientific labors, Hatcher accom- 

 plished much during his short career. His constant loyalty and 

 thoughtful kindness endeared him to those who were so fortunate 

 as to enjoy his intimate friendship. george e. eaton. 



