i8o Field Columbian Museum — Reports, Vol. II. 



manganese, and chromium were secured. Some fossils were obtained 

 in southern Tennessee and Mississippi. In all, the expedition yielded 

 six hundred and eighty-two (682) specimens of minerals, one hundred 

 and thirty-two (132) specimens of ores and associated rocks, twelve 

 (12) specimens of fossils, and twelve (12) miscellaneous geological 

 specimens. A deposit of Permian batrachian fossils in Oklahoma 

 was investigated by Mr. Menke in November, with a view to deter- 

 mining its richness in Museum material. Some fragmentary speci- 

 mens of scientific importance were secured, but the investigation 

 showed that material for exhibition purposes was not likely to be 

 afforded by the locality. A number of localities in Wisconsin afford- 

 ing Cambrian and Trenton fossils were visited by Mr. Slocom in 

 August, and a large amount of material new to the collections was 

 obtained. Several hundred specimens, chiefly of trilobites, brachi- 

 opods, worm and plant remains were secured, those of Cambrian age 

 being of especial importance, as this period has been but poorly 

 represented in the Museum collections hitherto. Field work on the 

 North American Forestry collection was carried on in northern Min- 

 nesota last autumn, at which time several complete collections of 

 trees were made by the Assistant Curator in Economic Botany. 

 The only other field work in the Department of Botany was that done 

 by the staff in Lake Chicago Basin. Several trips have been made 

 between Chicago and various points in northern Indiana and southern 

 Michigan, which have resulted in the addition of five hundred and 

 thirty-nine (539) sheets to the interesting series obtained in previous 

 years. Many photographs have also been made of plant societies in 

 this region. Mr. Heller, regular collector in the Department of 

 Zoology, was extremely successful in the Sierra Nevada and Death 

 Valley regions, and obtained a very large amount of valuable material, 

 amongst which were several new species. Mr. Meek, Assistant 

 Curator in the Department of Zoology, also did effective work in 

 southern and eastern Mexico, securing representative collections of 

 reptiles and invertebrates of those regions. As will be noted else- 

 where, Mr. Breninger collected for the Department of Ornithology 

 from January until July, chiefly in Arizona and California, and met 

 with unusual success, adding representative collections of nests, eggs, 

 and skins from the regions indicated. The following list indicates 

 the various expeditions sent out during the year : 



Locality. 



Southern States, 

 Oklahoma, 

 North Dakota, . 



Collector. 

 H. W. Nichols, . 

 George A. Dorsey, 

 George A. Dorsey, 



Material. 

 Ores, Minerals, and Fossils. 

 Pawnee Ethnology. 

 Arikara Ethnology. 



