228 



" If the arseiiites are to be used on the peach to defend against the 

 ciirculio, Paris o-reen only should be used, and that not strono-er than 1 

 poinid to 300 oa lions of Avater. 



" The injury done to the foliage is never immediately apparent. It 

 usually shows somewhat the second day, but the full injury is fre- 

 fiuentlv not manifest till the fifth day, and often not till the tenth." 



Poisoninfi the pastifi'e under the trees. — Experiments with seventy- 

 five hogs, three sheep, and one horse runniii.g under trees which had 

 been sprayed with London pu.rple, continued the results of chemical 

 analyses in showing tliat there is no danger of poisoning the pastures 

 in orcliards even wlicn the riiixtures of arsenites used are double the 

 l^rojier strength. 



BULLETIN No. 5-1 (STATION). OC rOBEli. ISSO. 



Experiments and ouservatioxs on the jack-pine plains, A^. J. 

 Deal, Ph. D. (pp. 3-10). — The importance of the problems connected 

 with the reclamation of the pine barrens in the northern part of Michi- 

 gan has been referivd to in previous publications of the Station and 

 this Office.* The present bulletin contains a preliminary report of 

 experiments made at several places within this region. From the 

 tests of numerous kinds of cro]:)S made at Grayling and at Harrison, 

 added to what has lieen learned from many other sources, the author 

 sees no present prospect of finding '' any grass or other forage crop, 

 any gi-ain or fruit or vegetables, which can 1>e profitably grown on 

 these plains without the aid of some fertilizer." 



Notes on experiments in 18S8-89 at Walton are given, and these 

 tests are compared witli those made at other places. The author also 

 gives the results of his observations and experinients in the manage- 

 inent of light, sandy lands. He advises the use of mixtures of three or 

 more kinds of grasses and clovers as occupying the soil more com- 

 pletely and giving a better yield than any one kind used alone. In his 

 opinion the best varieties for this purpose are Mammoth clover, alsike 

 clover, tall oat grass, orchard grass, tall fescue, and A(jP(>piiri(m tene- 

 ruvh (a wild grass from the West). Some fertilizer should be added 

 every year, especially all the availal)le l)arn-yard manure, and prob- 

 al)ly superphosphate for clovers. It is believed that successful agri- 

 culture on the sandy plains depends upon generous treatment of the 

 roil, and that these lands can be reclaimed only by men who have 

 'sufficient cai)ital to be able to wait for a considera1)le time before see- 

 ing the results of their labors. 



BULLETIN No. 55 (STATION), DECEMBER. 1SS9. 

 Fruit testing at the South Haven substation, T. T. Lyon, 

 (pp, 4-3-2 ). — " In response to the earnest requests of the fruit growers 

 alono- the eastern shore of Lalce Michigan the IJoard of Agriculture 



* See Annual Report of Michigan Station for 1888, a digest of which is given 

 in Experiment Station Bulletin No. 2 of this Office, pages 94-105. 



