350 Field Museum of Natural History — Reports, Vol. III. 



the State of Washington, including ores from the New Republic mine, 

 gold-bearing lead ores from Metaline, nickel, mercury, and antimony 

 ores from Cle Elum, a series of copper ores illustrating transition from 

 carbonate to sulphide from the Glacier Peak district, iron and chro- 

 mite concentrates from the black sands of Cape Flattery, talc, fire 

 clays and pottery clays and a series of silver-lead ores of the important 

 mines of the Coeur d'Alene district, Idaho. Some choice mineral 

 specimens were also obtained, including a fine group of smoky quartz 

 crystals from Mt. Hood and a specimen of the new mineral hulsite. 

 Some excellent Cretaceous fossils of unique form of preservation and 

 including a new nautiloid species were also obtained. On the same 

 trip the asphalt fossil beds near Los Angeles, California, and the Grand 

 Canyon of Arizona were visited and valuable specimens collected and 

 photographs made. A brief trip to Southern Oklahoma was made 

 by the Assistant Curator from which ores, fossils, and other geological 

 material of the territory were obtained. The ores secured were 

 chiefly of iron and manganese and illustrative of the gradations among 

 these ores and the replacement of limestone by iron. Good specimens 

 of glass sand were also obtained. The fossils obtained were chiefly 

 bryozoa and brachiopods. In addition, specimens of calcareous and 

 siliceous oolites were collected and some field studies made regarding 

 the origin of the latter. The Assistant Curator of Invertebrate 

 Paleontology continued during the year the work of collecting in- 

 vertebrate fossils in the Chicago area and at Wilmington, Illinois. 

 In the Chicago area over 500 specimens of Niagara age were collceted, 

 chiefly crinoids, sponges, and corals. Several of the crinoids fur- 

 nished additional illustrations of the new species recently described by 

 the Assistant Curator and some new forms were obtained. Several 

 hundred Pleistocene shells were also collected in the area. At Wil- 

 mington over 2,000 specimens of Richmond age were obtained, nearly 

 all of which are new to the collections. These include representatives 

 of about 20 species of Brachiopods, several species each of Pelecypods 

 and Cephalopods, and 35 species of Bryozoans. 



During January, February and March, Mr. John F. Ferry of the 

 Department of Zoology, visited the islands of Bonaire, Aves, Los 

 Roques, Orchilla, Tortuga, Blanquilla, Los Hermanos, Margarita, and 

 Testigos, situated off the northern coast of South America. His 

 collections number 824 birds, 27 birds' eggs, 19 mammals; and in 

 addition small collections of fishes, reptiles, and invertebrates were 

 made. As a result, 8 species and subspecies of birds new to science 

 were discovered and a large number of species new to the collections 



