made to cover, and those of the Biological Station, with some 

 incidental general work natnrally growing out of the operations 

 of these tw^o estal)lishments. I see no reason why the State of 

 Illinois should not provide in a suitable manner for the ener- 

 getic prosecution of this Survey work which it long ago author- 

 ized, and I propose, consequently, to ask of the next legislature 

 a suitable sum for this purpose and a separate sum for the 

 economic investigations for which the State Entomologist is 

 responsible. I think, also, that the legislature might well be 

 asked to enlarge the field of the State Laboratory of Natural 

 History to include an economic geological survey, with such 

 topographical work as this might require, and a biological sur- 

 vey of the water supplies of the State, conducted with special 

 reference to sanitary interests, a subject W'hicli is certainly not 

 less important in some of its aspects than that of their chemistry. 

 For details respecting the various departments of the work 

 of the Biological Station you are respectfully referred to the 

 appended reports of the Station Superintendent, Dr. C. A. 

 Kofoid, of Prof. A. W. Palmer, Director of the Chemical Survey, 

 of Mr. Chas. A. Hart, Entomologist of the Station, and of Prof. 

 Frank Smith, who served for a time as its Assistant Zoologist 

 and as principal instructor in the Summer School. 

 Respectfully sul)mitted. 



S. A. Forbes, l>\rcctor. 



