423 



the white clover plants, and survive the winter in tlioiu as inycoliiiin and spermo 

 gonia. The first mode would seem the natural one for preserving the parasite through 

 the winter; hut the small number of germinations [only seven from numerous cul- 

 tures, and even in these cases development was soon arrested] obtained from the 

 teleutospores taken from the dead stems implies some other mode of hibernation. 

 The second theory is supported by the fact that, in 1890 at least, not only the ajcidia, 

 but mainly the uredo and teleutospores also, were found in spring and early summer, 

 occurring maiuly on the white clover. The infection of the "rowen" or second 

 crop of red clover evidently took place largely through the generations of uredo- 

 spores derived from the whiteclovor. Observations along these linos are still going on. 

 Snggestions. — So far as present observations go: 



(1) The early crop of red clover is not likely to suffer injury from the rust. 



(2) As the second crop is likely to suffbr greatly if the midsummer is cool, and as 

 clover becomes a valuable fertilizer when plowed in, the fields should be carefully 

 watched in such seasons and the crop might be plowed under to advantage. 



(3) Burning the clover fields in the fall would probably have some effect in 

 checking the spread of the disease during the next season; but the application of 

 fungicides seems impracticable. 



North Carolina Station, Bulletin No. 73a (Meteorological Bulletin No. 12), 

 October 15, 1890 (pp. 16). 



Meteorological summary for North Carolina, September, 

 1890, H. B. Battle, Ph. D., and C. F. von Herrmann.— Notes on the 

 weatl»er,and montlil}^ sujumaries and a tabulated daily record of meteor- 

 ological observations by the North Carolina weather service. The 

 bulletin is illustrated with maps of North Carolina, showing the isother- 

 mal lines and the total precipitation for different parts of the State. 



Rhode Island Station, Second Annual Report, 1889 (pp. 124). 



This is published as Part II of the Second Annual Eeport of the 

 board of managers of the Bhode Island State Agricultural School and 

 Experiment Station, made to the general assembly of Rhode Island at 

 its January session, 1890. 



Report of board of managers (pp. 3-8). — A brief account of 

 the operations of the station in 1889. 



Organization, C. O. Flagg, B. S, (pp. 9-18).— A reprint of Bulletin 

 No. 1 of the station (See Experiment Station Record, Vol. I, p. 145). 



The farm, C. O. Flagg, B. S., and E. F. Clark (pp. 19-32).— A 

 reprint of Bulletin No. 2 of the station (See Experiment Station Record. 

 Vol. I, p. 146). 



Stock feeding, H. J. Wheeler, Ph. D. (pp. 33-69).— A reprint of 

 Bulletin No. 3 of the station (See Experiment Station Record, Vol. 1, 

 p. 296). 



Bee keeping, S. Cushman (pp. 70-96).— A reprint of Bulletin No. 

 4 of the station (See Experiment Station Record, Vol. I, p. 296). 



Potatoes, methods of planting and test of varieties, and 

 meteorolooical summary, L. F. Kinney, B. S. (pp. 97-104).— A 



