594 
advantage over the higher organized plants. Climatic conditions wholly 
unfavorable to the growth of the latter are highly favorable to that of 
the former. ; 
Probably the true remedies for the evils complained of consist in 
thorough drainage, proper culture of the soil, moderate manuring, and 
destroying the cocci and fungi by frequent washings with weak alkaline 
solutions, such as potash, soda, or ammonia. 
Orange-plants confined within glass structures suffer a great deal from 
insects and fungi, and the remedy in use in such cases consists in 
thorough washing with soap and water, and the free use of a soft brush. 
' Frequent washings are necessary. 
At page 115 of the annual report of the Department of Agriculture for 
1855 is published an interesting description of the habits of the orange- 
scale insect, by the entomologist of the Department, in which he pro- 
poses to syringe the plants affected with a solution of guano. Its am- 
monia destroys the young cocci as they emerge from the shelter of the 
parent scale, while the droppings enrich the soil. 
As the growth of the black fungus seems so intimately connected with 
the presence of the orange-scale cocci, I would recommend that the in- 
‘sects be first destroyed by the washes proposed, and then the fungus 
and rust will disappear from the plants with a rapidity in proportion to 
the attention bestowed upon their cultivation, provided the climatic con- 
ditions are favorable to their growth. 
FOREIGN DEMAND FOR WHEAT. 
We have repeatedly shown it to be the policy of nations to supply 
their own people with wheat and other bread equivalents, and that few 
fail to do so, and fewer still undertake as a permanent policy the pro- 
duction of cereals for exportation. Among these Russia and the United 
States are the most prominent, and France and Germany always export 
something, and often partially balance exports by subsequent imports. 
Great Britain is the only regular and extensive purchaser. That 
the reader may study the wants of Great Britain, and means of sup- 
ply, the following table is given, compiled from the official records of 
‘British imports. 
A statement showing the sources of supply of wheat to Great Britain, as presented in official 
tables of imports, being the total imports of wheat and flour (in equivalent weight of grain) 
of fifteen years. 
Year. ates Russia. | Germany.| France. pyr neta ecetaciy Total, 
Cwt. Cwt. Cwt. Owt. Cwt. Cut. Owt. 
SiS hi Seti apt 4,782,785 | 2,653,883} 4,210,117] 5,581, 064 702, 838 | 5,270,254 | 23, 201, 941 
BoESI?, Esse ke 430,504 | 3,837,454] 4,561,521 | 8 124,978 170,821 | 4,372,456 | 21, 497, 734 
rT eae ae 9,315,125 | 5,659,971 | 6,904,819 | 4,583,412 | 1,310,652 | 4,067,947 | 31, 841, 926 
lad ae gig Le 15,610, 472 | 4,540, 483 | 6,658, 462 | 1,359,882 | 3,387,949 | 6,089,457 | 37, 646, 705 
a ees ee 21, 765, 087.| 5,755,785 | 7,930,849 | 1,961,835 | 5,118,698 | 7,510,140 | 50,042, 394 
PEGS ee ese 11, 869,179 | 4,538,934 | 5,728,626 | 1,857,408 | 3,198,187] 3,695,563 | 30, 887, 892 
ry eR ete 10,077, 431 | 5,129'410 | 6,842,721 | 2,854,421 | 1,831,897] 2,101,320 | 28, 837, 203 
BeGa eee ek 1, 498,579 | 8,093,989 | 7,224,371 | 6,058, 902 528, 456 | 2,439,255 | 95, 843, 552 
PBGG eee 986,229 | 9,181, 432 | 6,801,657 | 8, 023, 530 59,601 } 4,319,230 | 29, 371, 679 
Te ae ae ie - 5,091, 733 | 14,166, 794 | 7,873,216 | 2, 140, 832 835, 006 | 9,029,199 | 39, 136, 780 
5 6, 753, 389 | 10, 055, 338 7, 224, 597 846, 863 798, 505 | 10, 827, 353 36, 506, 045 
15, 320,257 | 9,187,236 | 7,546,688 | 2,153,350] 3,396,511 | 6,843,730 | 44, 447, 772 
15, 057, 236 | 10, 326, 844 4, 487, 773 1, 060, 120 3, 402, 690 2, 571, 452 36, 906, 115 
15, 625, 331 | 15, 689, 943 4, 258, 823 182, 262 3, 782, 776 4, 823, 092 44, 362, 227 
9, 634, 349 | 17,938,977 | 5,183,601 | 4,553,781 | 2,157,170 | 8,145,018 | 47, 612, 896 
