b'09 



mining and mannfactiiring stimulate (lemaiid. Whire prices are lowest there is 

 cither an excessive iirodiict ion or a very low rate of yield. It requires nearly 4 acres 

 in South Carolina to equal the value of one iu New Hampshire, though the soil of 

 the former is inferior to that of the latter; aiul it requires more than 3 acres in 

 Nebraska, which makes the highest average rate of yield, to produce the value of 

 one in the Granite State. These divers results depend far more upon inequalities in 

 distribution of population, and especially in the ratio of consumers to i)r()(lncers, 

 than upon climate or soil. In wheat and other cereals, jiotatoes, hay, and all faiin 

 products of general geographical distribution, similar diil'erenccs are found to result 

 from similar causes. 



Keport iS'o. 82 (NEW SKTiiKS), MARCH, 18U1 (pp. 57-104).— Tliis iu- 

 cliides articles on the distribution and consuni])tioii of eorn and wheat, 

 asricultnral contributions to international commerce, comparative sta- 

 tisti(;s of wheat exportation, legal weights per bushel in the different 

 States, European crop report for JNIarch, and the freiglit rates of trans- 

 portation companies. 



The wheat crop of the world for 1890 is estimated to have been 

 2,20;i,889,552 bushels. North America produced 438,493,412; South 

 America, 60,271,043 5 Europe, 1,316,177,644; Asia, 307,552,000; Africa, 

 38,915,122, and Australia, 42,480,131 bushels. The six leading countries 

 were the United States, 399,262,000; France, 338,902,124; India, 

 235,345,000; Russia in Europe, 197,739,200; Hungary, 165,345,0U0; and 

 Italy, 126,640,746 bushels. 



DIVISION OF VEGETABLE PATHOLOGY. 

 Farmers' Bulletin No. 4. 



Fungous diseases of the grape and their treatment, B. T. 

 Galloway (pp. 12). — The downy mildew, powdery mildew, black rot, 

 and anthracnose are briefly described ; directions are given for the prep- 

 aration of the simple solution of copper sulphate, Bordeaux mixture, 

 amnu)nia('al solution of coi)per carbonate, and eau celeste; methods of 

 treatmeutare outlined; and the costof using the fungicides is estimated. 



DIVISION OF ENTOMOLOGY. 



Bulletin No. 7. 



The rEDicirLi and Mai.lopiiaga, H. Osborn (pp. 56, illustrated).— 

 This includes descriptive notes on the species affecting man and the 

 lower animals. The bulletin is illustrated with 42 figures, 22 of which 

 are original. Technical descriptions are given of the following new 

 species: louse of the field mouse (Hccmatopinus acanthopus, Burm.), 

 louse of the Hying squirrel {U. sciuropteri, ii. sp.), louse of the fox 

 squirrel (//. antennatus, n. sp.), louse of the white-footed mouse (7/. 

 hesperomydia, w. sp.), louse of the ground squirrel and chii)munk {H. 

 snturali>i, n. sp.), sucking louse of the pocket goplier [lUvmatopinoides 

 squamoHHH, n. sp.), and louse of the pocket gopher {Ttivhodectcsf/comi/dis, 

 n. sp.). 



