144 REPORT OF OFFICE OF EXPERIMENT* STATIONS. 



lowing appropriations for 1912: Maintenance of the station at Boze- 

 man, $22,500; improvement at this station, $4,000; work in drj^ farm- 

 ing, $20,000; maintenance of the Fergus County substation, $3,000; 

 and maintenance of the horticultural substation, Ravalli County, 

 $2,000. The station chemist was designated as State chemist in food 

 and health matters, with an appropriation of $1,500 per year; and 

 a dairy inspector and instructor to be located at the college was au- 

 thorized, with an appropriation of $3,000 per j^ear. At Bozeman, 

 $10,000 Avas used during the year in the erection of greenhouses. 

 (PI. V, fig. 1.) At the Fergus County substation a ncAv horse barn 

 was completed and other improvements in the buildings were made. 

 A new barn was also constructed at the horticultural substation. 



The Adams fund work made steady progress. The life history of 

 the oyster-shell scale was studied in the laboratory and in the field. 

 Observations on the number of broods in Montana were made, and 

 a mite attacking the scale was studied in cooperation with Iowa 

 station. The efficiency of different substances used in combating the 

 insect was determined. Among sugar-beet insects, the army cut- 

 worm was studied with special reference to its control through 

 parasites and other predaceous enemies. Work on the life history of 

 the root louse was completed, as was also the study of the beet aphid, 

 which was differentiated from the European species brought over 

 for comparison. 



The investigation of the physiological effect of arsenical compounds 

 was continued with vegetables and trees, and substances were tried 

 as to their capacity of counteracting the injuries resulting from this 

 class of insecticides. A preliminary report on this project has been 

 published.^ 



The soil-moisture project, as such, was closed out and the results 

 secured prepared for publication in two bulletins. This general line 

 of work was reorganized to include bacteriological and chemical soil 

 studies, which made good headway. 



A preliminaiy report on the Montana apple canker was prepared 

 and a report on antliracnose was made ready for the press. 



Work on the temperature conditions of hatching eggs in the in- 

 cubator and under the hen was carried forAvard, together with studies 

 of other phases of incubation. A self-recording apparatus for get- 

 ting temperature records was installed to facilitate the work and to 

 give greater accuracy. 



In studying the effect of various factors upon wool considerable 

 attention had to be given to devising methods. A large number of 

 samples of wool were gathered and studied with reference to strengtli 

 and other qualities as affected by methods of handling and treating 



1 Phytopathology, 1 (1911), No. 3. 



