Jan., 1918. Annual Report of the Director. 165 



pool fishes ever made in that state, and a series of desirable fishes, mostly 

 from Japan, presented by Stanford University. The accessions may be 

 summarized as follows: Purchases: 41 mammals and 404 birds; By 

 gift: 169 mammals, 5 birds, i nest and eggs, 213 fishes, 3,000 insects 

 and 223 shells; By exchange: 6 fishes; By expeditions: 379 fishes and 

 180 insects. 



EXPEDITIONS AND FIELD WORK. — Scvcral short trips were made by 

 the various members of the staff of the Department of Botany to 

 Indiana and northern Illinois, for the purpose of obtaining living plant 

 material for the Section of Reproduction. The Curator accompanied 

 by an assistant made a day's trip to the interesting lake shore region 

 between Waukegan and Beach, Illinois, on which they collected 56 

 plants for the herbariiun. Preparator Lansing visited the Galena region, 

 in Jo Daviess County, Illinois, collecting 205 plants for the herbarium 

 and 414 for exchange purposes. 



A trip was made by the Curator of Geology to Colby, Wisconsin, in 

 order to secure specimens of the meteorite which fell there on July 4th. 

 By excavating the soil at the point of faU the Curator succeeded in 

 collecting about 20 poimds of the meteorite in the form of fragments 

 which had been naturally formed by its shattering in striking the earth. 

 There were 43 2 fragments so obtained, some of them being over 1 00 grams 

 in weight. A large piece of a second individual, which fell about half 

 a mile distant, was also secured. In addition photographs were made 

 at the point of fall and descriptions of the phenomena of the fall obtained 

 from a nimiber of eye-witnesses. A remarkable deposit of wind-carved 

 boiilders in Maine was visited by the Curator and twenty-four speci- 

 mens illustrating typical results of wind-action collected from the 

 deposits. Some specimens illustrating glacial river phenomena were also 

 collected in the same vicinity and about thirty photographs illustrating 

 glacial phenomena made. The Assistant Ciirator of Geology spent ten 

 days at Natural Bridge, Virginia, seciiring material and data for a model 

 of the Natiiral Bridge. Besides taking more than one hundred photo- 

 graphs, he made a stadia survey of the region and plane-table surveys 

 of portions of special importance. It is expected that with this data 

 it will be possible to make a model which will be an accurate and faithful 

 replica of Nature. The survey made by the Assistant Curator is, so 

 far as known, the first detailed survey of the Bridge that has been accom- 

 plished since that conducted by Thomas Jefferson shortly after the close 

 of his term as President. The courtesy and cooperation of Mr. T. H. 

 Gumey of the Chesapeake & Ohio Railroad contributed materially to 

 the success of the undertaking, as did also that of Mr. J. A. Mundy, 

 President of the Bridge Company, who arranged for free admission to 



