l6 NEW YORK STATE MUSEUM 



the Legislature for the construction of cases for all the Museum 

 collections on specifications which will make them of most modern 

 type. This fine equipment will permit the Museum to leave behind 

 it the antiquated and uninviting cases which pertain to its past 

 career. The planning for this equipment has involved close and 

 arduous study and has called for the continued attention of the 

 members of the staff. 



Notwithstanding these immediate internal duties of the divi- 

 sion the lines of scientific research which properly pertain to it 

 have been forwarded along their usual channels. The subjects 

 which have engrossed the attention of the members of the staff 

 have been somewhat diverse in character. The mineral springs 

 at Saratoga have been the subject of close investigation as to 

 their origin and an elaborate report thereupon has been issued. The 

 study of the geographical development of the State has reached 

 a point at which it has been possible to issue during the year a 

 series of maps indicating the condition of New York at various 

 stages during the period of retreat o[ the great ice sheet. The 

 mineral industry of the State has received special attention and 

 lines of possible future development of this industry have been 

 indicated in the annual report on the mining and quarry indus- 

 try. It is a part of the business of the State Geologist to execute 

 a geological map of the State and this work has been in progress 

 for a number of years, the base of the map being on a scale of 

 one mile to the inch. This work has made a decided advance 

 during the last year and the area of the State covered in this 

 very great detail now approaches 20,000 square miles. Probably 

 in no state has the plotting of its geology been carried on so 

 minutely over so large an area. Of special interest also has 

 been the work of the State Entomologist in his efforts to control 

 the depredation of the many insect pests that are damaging the 

 agricultural and native forest crops of the State. In this line 

 this official has been very diligently occupied and with advan- 

 tageous results. 



IV 



REPORT ON THE GEOLOGICAL SURVEY 

 AREAL GEOLOGY 

 In recent reports, statements have been made in regard to the 

 progress of the areal mapping of the State on the topographic 

 base map. During the past year, the additional quadrangles com- 

 pleted in western New York are those of Brockport, Hamlin, 



