I.KTTHK OF TKAXSMITTAL 



I'. S. I >I:IV\KI MKNT OF A<;i;ict i/i t i;i . 



lit i: KAl <F ClIKMISTIM . 



HW//X</'"/'. It. r.. December 31, /.'t08. 



>\\i: I have the honor to transmit for your approval manuscript and 

 graphic charts embodying the results of the cooperative work con- 

 ducted bv this Bureau in the study of the effect of environment upon 

 the composition of the sugar beet during the year 1{N)1. To the work 

 as conducted in 1JMM), the results of which were published in Bulletin 

 (54, Bureau of Chemistry, has been added the consideration of the 

 influence of the soil. I recommend that this manuscript l>e published 

 as Bulletin No. 74, Bureau of Chemistry. 



I wish again to express my appreciation of the work done by the 

 various stations taking part in the experiment, the continued cordial 

 cooperation of the Weather Bureau, which is of vital importance., and 

 the information received from the Coast and (Jeodetic Survey and the 

 Naval Observatory in response to the request, made for geodetic data. 

 The analytical work done in this Bureau was performed, under the 

 direction of Mr. G. L. Spencer, by the assistants in the sugar labora- 

 tory, namely, H. W. Houghton, A. W. Bache. and Arthur (liven. 

 Respectfully, 



II. \V. WlUBT, 



( %iefof Bureau. 

 Hon. JAMES WILSON, 



/Secretary. 



