and Laboratory Methods. 



2449 



Sectional Specimen Cabinet. 



The microscopical work conducted by the Bureau of Chemistry is such that 

 a large and ever increasing number of standard authentic samples as well as 

 common commercial products is required as reference material. The work per- 

 formed at present includes such subjects as various food materials, spices, starches, 

 flours, coffees, teas and cocoas, and textile goods, paper, etc. In order to meet 

 the requirements of such a collection, a sectional specimen cabinet was devised, 

 such that new units can be added from time to time without interfering with the 

 general appearance of the cabinet. It embraces certain features of the cabinet 

 described in the Journal last year.* 



Fig. 1. 



At present the cabinet consists of four units, a base and a cap-piece, and 

 occupies a floor space of o5 by "201 < inches and stands 56 inches high (Fig. 1). 

 The top section contains the card catalogue. The bottom section is fitted for 

 storing microscopic slides, while the other two are arranged for storing reference 

 samples in small glass jars. A detailed description of the separate sections will 

 make clear the construction of the various units. 



*A Convenient and Economical Cabinet for Microscopical Slides, Journ. Applied 

 Microscopy, April, 1902. U. O. Cox. 



