blanks upon which the principals make application for the col- 

 lections and at the same time indicate the sequence desired. 

 Delivery is then made by the Museum messengers, who call 

 again at the end of the loan period, that is, in three or four 

 weeks, and make the second delivery. This method keeps the 

 Museum in frequent touch with the teachers and enables us to 

 understand their needs better. 



The work began with ten small cabinets of birds. The re- 

 quests for the collections became so numerous that it was neces- 

 sary immediately to increase the number as well as the variety 



of the collections. In 



the first year collec- 

 tions of minerals and 

 rocks, native woods, 

 insects and several 

 other lower animals 

 were added to the 

 series. The collec- 

 tions then covered 

 the greater part of the 

 material suggested in 

 the Syllabus and the 

 growth of the work 

 merely required the 

 duplication of the col- 

 lections already in 

 circulation. Recent- 

 ly, however, owing to 

 the growing interest 

 in questions of public 

 health, a number of 

 folios pertaining to 

 public health have 

 been added to the 

 series. These com- 



, . A CIRCULATING 



prise photographs nature study collection 



and charts illustrating the sources, spread and prevention of 

 contagious diseases, the part played by insects in carrying 

 disease, and bacteria and their work. These public health 



