extraordinary interest. The case includes a superb model in celluloid 

 of a fruit bat, by Staff Taxidermist Leon L. Walters, who also made 

 other models or supervised their preparation, and installed the case. 

 Since bats are for the most part small creatures, enlarged models are 

 used to show such features as the remarkable variation in dentition 

 correlated with food habits; various structures, such as a sucking 

 disk on the wing of a tropical bat; and the bizarre faces produced by 

 development of nose-leaves, ear-leaves, and other fleshy projections 

 of the face that appear to be of some aid in flying in the dark. The 

 vampire bat, which feeds on the blood of mammals, and may occa- 

 sionally attack man, is shown in its spider-like running posture. By 

 including skeletal material, mounted specimens, celluloid models, 

 enlarged models of special structures, colored illustrations, and maps, 

 the case embodies modern ideas of museum exhibition, which tend 

 toward the explanation of the exhibits, and represent an important 

 advance from the mere mounted specimen labeled with its scientific 

 name. 



In Hall 19 a vacant case was installed with skeletons of the domes- 

 tic pig, wart hog, and peccary, and skulls of the wild boar and the 

 babirusa. These represent the more important types of the pig 

 group. The installation is by Mrs. Dorothy Foss, Assistant in the 

 Division of Anatomy, who enjoyed expert advice from Messrs. 

 James Quinn and Harry Changnon of the Department of Geology. 



A model of a large boa constrictor (see Fig. 16) made by Mr. 

 Walters, who used the "Walters Process," was installed in Albert W. 

 Harris Hall (Hall 18), opposite the reticulated python. It forms an 

 appropriate companion piece to the python, as these forms represent 

 the two families of gigantic snakes whose names extend into the pop- 

 ular vocabulary. The original specimen was presented to the 

 Museum by the Lincoln Park Zoo, through the courtesy of the Direc- 

 tor, Mr. Floyd Young. 



The Division of Birds reinstalled, with new labels, the small case 

 of birds' eggs in Hall 21, and relabeled the albino case at the entrance 

 to Hall 21. Corrections were made on certain labels in Halls 20 and 

 21. This task was supervised by Mrs. Ellen T. Smith, Associate in 

 the division. 



In the Division of Lower Invertebrates, some relabeling of the 

 exhibition collection is under way. The few shells broken or dis- 

 placed in the course of moving the collection to its present location 

 in Hall M were repaired or replaced. 



In the Division of Insects a case of exotic moths was installed 

 in Harris Hall (Hall 18), to accompany the three cases installed in 



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