94 



Native plu^is. S. B. Green, B. S. (pp. 3G-38).— This representa- 

 tive fruit of the Northwest is vsell adapted to the climate of that sec- 

 tion and is susceptible of nnich improvement under cultivation. It is 

 to be exj^ected that vahia1)le crosses between this and finer but less 

 hardy plums will be produced for growth in this region. The Sta- 

 tion has made a collection of promising native varieties. Notes on 

 plums grown at the Station in 1888 are given. In reference to the 

 claim made for some varieties of plums that they are '' curculio 

 proof,"' it is stated that all varieties are liable to the attack of this 

 insect, but that the native varieties are not so much injured b}' its 

 attacks as the others. 



Tests or varieties of cabbage, S. B. Greex, B. S. (pp. 38—13). — 

 Tests were made with common varieties and with some novelties, and 

 the conclusion is that few of the new varieties are " any better, if as 

 good, as those now grown and widely known." Notes are given on 

 some old and new varieties deserving especial mention and on six 

 varieties not true to name or mixed. Complete data for the varieties 

 grown at the Station in 1888 are stated in tabular form. 



Experiments in potato culture, C. Poumeroulie (pp. 44, 45). — 

 The yields from sprouts grown in the natural wa}^ are compared with 

 those from sprouts IxMit down with a hand roller when 1 foot high 

 and covered with earth. The results in this case favor the use of the 

 roller. 

 • Frosted and rusted avheat. Otto Lugger, Ph. D. (pp. 46-67). 



Freezing of plants (pp. 46-53). — An account of the physiological 

 changes in the plant during freezing. The Station has undertaken 

 the investigation of this subject with reference to wdieat by chemical 

 analyses and by artificial and natural propagation of the frosted 

 grain. 



RustiiKj of irheat (pp. 53-67). — An illustrated account of the 

 fungi causing rust, with a glossary of the technical terms used and a 

 letter describing a visit of the author to the region in the Red lliver 

 Valley where the wheat had been greatly injured by rust. 

 BULLETIN No. 6, FEBRUARY, 1889. 



Notes on the effects of frost and rust on the germination of 

 WHEAT, E. I). Porter, Ph. D. (pp. 5-9). — In September, 1888, a let- 

 ter was received at the Station from the editor of '' Farm, Stock and 

 Home,*' asking for information regarding the effects of frosting on 

 wdieat. This led to an investigation of this subject by the Station. 

 In response to an inquiry from the Station, Hon. J. S. Pilsburv, the 

 well-known flour manufacturer, stated that frosted wheat produced 

 flour of a very low grade and only one-fourth the quantity obtained 

 from sound wheat. When farmers in the frosted districts did not' 

 generally respond to the request for samples of injured wheat, pub- 

 lished in the paper referred to, the Station botanist visited that por- 

 tion of the State most severely affected by August frost and col- 

 lected samples there. Some of these were used for germination and 



