1890.] 



PUBLIC DOCUMENT — No. 33. 



177 



Most of our grain crops sufiered more or less from smut. 

 The season was evidently not favorable for comparative trial 

 of grain crops. 



Russian Rhuharh. — Some years ago a small sample of 

 seeds of this plant was sent on to the station by the 

 Secretary of the American Eetail Druggist Association, with 

 the request to experiment with them upon our fields. The 

 seed was represented as genuine by an officer of the Russian 

 government, who procured it for the association. Several 

 plants raised from this seed have been for a number of years 

 cultivated very successfully on our ground. Well-matured 

 seed has been collected every year, and some of it was sown 

 two years ago. Quite a number of roots have been collected 

 for trial by druggists. Parties interested in the question of 

 their fitness for medicinal purposes can secure a specimen 

 for trial, if early applied for. An attempt has been made to 

 give a correct picture of the roots in difterent positions by 

 the photographs accompanying this chapter. Photographs 

 of the same kind of crop have in every instance been taken 

 at equal distance from the camera, that their relative sizes 

 miirht be observed. 



Description of the Ears of Corn illustrated hy the Follmving 



Photographs, 



1. Red-cob ensilage corn, a dent variety mentioned in this 



chapter. 



2. Pride of the North corn, a dent variety largely grown upon the 



station grounds. 



3. Minnesota king corn, a dent corn mentioned in this chapter. 



4. Clark corn, a flint corn which has served for our observations 



on Fiekl A. 



* One ounce equals about thirty grams. 



