Smithsonian Report, 1941.— Walker 



PLATE 2 



2. Syrian hamster coming out of a telescoping type of nest box, showing wire fabric sHde used to close the 



entrance when desired. 



2 Three emneror penguins, one gentoo penguin, four jackass or black-footed penguins, and two kelp gulls 

 in glassTonted cool room in the National Zoological Park. The.glass front is of two layers of glass with 

 a dead air space between. A temperature of about 50° is maintained. 



