MINNESOTA. 131 



mental forest of 2,700 acres in tlie vicinity of Cloquet, Minn, Dif- 

 ferent rotation periods Avill l)e tried and an arboretum and forest 

 garden established. 



Tlie soil work of the station was continued along the lines previ- 

 ously outlined. The chemical and physical properties of the various 

 soil areas of the State were studied and fertilizer tests were made in 

 different sections to study the relation between laboratory and field 

 methods of determining the deficiency of fertilizing elements. 



The division of vegetable pathology and botany occupied itself 

 chiefly with diseases of plants, botanical features of weeds, and the 

 study of weed seeds and seed mixtures. In addition to studying 

 rusts and smuts of cereals, spikelet blights of oats, aster blight, 

 damping otf of greenhouse plants and coniferous seedlings, diseases 

 of apples and plums, and bean anthracnose were given attention. 

 Collections of various weed seeds growing in the State were made 

 and the equipment of an up-to-date seed laboratory was about com- 

 pleted. 



In the veterinary division the principal lines of work w-ere with 

 hog-cholera vaccine, swamp fe^•er, and antituberculosis vaccine. In 

 connection with the vaccine work results valuable from a scientific 

 and practical standpoint were secured, and much information was 

 gained on the nature of swamp fever. The latter was studied in 

 cooperation with the pathological division of the Bureau of Animal 

 Industry of this Department, under a special contract and a special 

 appropriation of $5,000. The work in this department has been 

 considerably strengthened since the completion of the new veterinary 

 building, providing much better facilities than were enjoyed pre- 

 viously. Cement cremation pits were constructed for the destruc- 

 tion of manure from diseased animals. 



Among other work the substation at Grand Rapids cooperated 

 with tlie "Wisconsin Station in experiments as to the methods and cost 

 of stump removal on cut-over lands. 



The cooperative work of the station was carried on with farmers 

 in corn-breeding investigations, studies of clover-seed culture, aninuil 

 breeding, particularly with Shorthorn cattle, spraying trials, and 

 preservation of fence posts; while with this Department this work 

 was carried on along the lines of plant and animal breeding, preserv- 

 ative wood treatment, cereal diseases, particularly (lie rusts and 

 smuts, and the swamp fever work already mentioned. 



At the school of agriculture at Crookston, the experimental field 

 work has thus far been preliminary. The farm was drained and put 

 in nuich better condition than formerly. The live stock includes a 

 number of Shorthorn and Holstein cattle, and a good poultry plant 

 has been established with a large flock of Leghorns and Plymouth 

 Rock fowls, of which cir<r records are kept. Much attention was 



