120 REPORT OF NATIONAL MUSEUM, 191&. 



nection with the chemical pulp, the model also illustrates the manu- 

 facture of sulphuric acid. 



The second model is 2. by 4 feet, and was made to illustrate the 

 manner of distilling oil of sweet birch in Tennessee and North 

 Carolina. 



Two small models, showing the reclamation of arid land, were 

 made for the Interior Department. 



Installing. — The time of the preparators has been fully occupied 

 in indexing, cataloguing, and installing new exhibits and in rear- 

 ranging some of the older ones. The textile exhibits received during 

 the year have been promptly acknowledged, accessioned, and cata- 

 loged, and most of them are installed. The installation work done 

 on the five cases of plush and upholstered goods is especially credit- 

 able, for this material is heavy and requires great skill in its hang- 

 ing and arrangement. The cases containing dress silks, shawls, and 

 knitted fabrics, each presented different problems for solution. 



Several thousand samples in the study collection of textiles were 

 dated, mounted on cards, and classified, and an exhibit of small 

 samples showing typical weave structures was made. 



The 10-saw cotton gin, which has always been an object of great 

 interest to visitors, particularly the school children, was overhauled 

 and as much as possible of the wood and iron work replaced by 

 glass, so that the method of removing the cotton fiber from the seeds 

 can be clearly seen. 



In the division of medicine, four new exhibits were installed, and 

 the cases containing the study collections were rearranged so as to 

 separate them from the workroom where new material is held 

 pending identification, labeling, and installation. The anatomical 

 jars containing the glands and glandular tissues obtained from 

 slaughtered animals were replaced by rectangular containers, and 

 fresh Francis's preser\'ing solution supplied. 



In the absence of the assistant curator, section of wood technology, 

 no new installation was completed other than the setting up and 

 casing of the large model illustrating the manufacture of wood-pulp 

 paper. 



Considerable time was given to the arrangement and installa- 

 tion of the food exhibits. These were contained in 20 upright floor 

 cases arranged in a circle around the rotunda, and radiating from 

 the statue in the center. Except in a few cases where the foods were 

 placed in shallow glass saucers or were left in original packages, 

 the specimens other than liquids were placed in rectangular jars, and 

 presented a fine appearance on the glass shelves. 



Lahelmg. — The labeling of the exhibits in this division has been 

 greatly improved. Case labels have been printed for certain exhibits 

 on the medicine gallery and the wood court. All the giunmed-letter 



