LETTER OF TRANSMITTAL. 



To the President of the Board of Regents of 



The University of Minnesota. 



Sir : I have the honor herewith to submit to the Board 

 of Regents the fourth number of the Zoological Series of the 

 reports of the Geological and Natural History Survey of Min- 

 nesota under the title The Collembola of Minnesota by Joseph 

 E. Guthrie, M. S., a graduate of the University. 



Mr. Guthrie carried on the work on this interesting group 

 of insects under my general direction and the more immediate 

 supervision of my assistant Oscar W. Oestlund. 



The material and notes upon which the report is based are 

 now stored with the special collections of the Department of 

 Animal Biology and are at all times accessible to students and 

 investigators. 



Very respectfully, your obedient servant, 



HENRY F. NACHTRIEB, 

 The University of Minnesota, Zoologist of the Geological 



January 12, 1903. and Natural History Survey, 



