University of Minnesota School of Agriculture - Agrarian Yearbook (Minneapolis, MN)

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'N , N 1 31 2? WIN ' W tr' tm' flllix for mt em D to ' ' ' X fl x' f A is M N S .N N l N l '4 N i 1 l N l A Na 3. sl N Back row: W. B. SILCOX, G. A. POND, G. A. SALLEE, D. C. DVORACEK, L. F. GAREY, P. M. Lowe, W. C. WAITE, E. C. JOHNSON, R. W. Cox, D. S. ANDERSON, L. L. ULLYOT, W. P. RANNEY. Front row: DOROTHEA D. KITTREDGE, ADENA E. ERICKSON, O. B. JESNIESS, ANDREW Boss, L. B. BASSETT, L. H. WATKINS. The Division of Farm Management and Agricultural Economics HE farmer encounters not only problems of technical production such as those involved in feeding, breeding, disease control, handling of soils, growing of crops, but also problems of an economic nature. In fact technical production problems usually have economic aspects. For this reason, students of agriculture need to study the economic side of their industry as well as the technical. The field of work of this Division is to supply this need and to assist farmers through studying economic problems of their industry. Courses in farm management and organization and farm records are given to students in the School of Agriculture. An extensive list of courses is offered to students in the College of Agriculture, Forestry and Home Economics and to graduate students, including principles of economics, rural economics, farm management, natural resources, marketing, agricultural cooperation, statistics, prices, accounting, land economics and farm finance. Specific problems are studied as a part of the research work of the division including projects obtaining data on efliciency and cost factors in farming, marketing methods and problems, market organizations, factors influencing prices, 0 questions of agricultural taxation, and credit problems. The work of the Division ,KJ is planned to give training to students in economic principles affecting agriculture and so to acquaint them with economic problems confronting the farmer. ' rjhl BQ Ll.- ..,. . . , ,H-an ,W of A-, - .W i- fegmix W-'f,,1xYQ..,.,' lkifiegi 4 fibilzssfi Page Thirty-eight

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4 . ,,n f ww V ' ig ' N wif iff-fi. ' ,f'..-'ijyfi' -,Zffli i V . 219.- . r X .f .N G.-pg f.-x1-LZL.'.,,,.-fv,-f ,ve 1 H- --1 -,rw 'Nj-.1 ...A .A 4...f J... Y. -A , . X , .. . ,A lylfll. ,,..,j. ll l ,W Vffsf llfli l11.gQkf.',.1 XXI l 44 215. A-Q Ai! .Q ,K . VQN MQ! Q 45 X . ral .qw A XX Back row: W. A. RILEY, A. G. Ruccuas, W. D. BUCHANAN, FRED. A. MORTON, A. L. STRAND, H. E. 'v GRAY, CARL T. SCHMIDT. iw.. Front row: H. C. DONOHOE, ERDMAN BRAUN, A. A. GRANOVSKY, H. G. AHRENS, M. C. TANQUARY. Q. Y 4' 5 i The Division of Entomology and Economic Zoology f 4 6 l MONG the many important problems taking the time of the members of the A Division of Entomology and Economic Zoology is the one concerning the Q44 control of injurious insects. The insects for the most part do their damage x . . . . ' before they are recognized as dangerous and it is only by keeping constantly on guard that the grower can combat these insidious pests. One of the principal methods of N Q6 combating injurious insects is by the use of insecticides such as paris green, arsenate of lil. lead, nicotine, oil or soap. To kill a chewing insect an internal or stomach poison is required. The principal ingredient in the most of these stomach poisons is arsenic. When used in a spray the 3 is particles of poison are held in suspension in the liquid and settle down on the leaf when the Water evaporates. Much experimental work is required to determine the value of an aj insecticide. The sticky quality is one of the valuable assets of a stomach insecticide. ' 131 . . . lx MQ In the picture Professor A. L. Strand has just demonstrated the electrical charge present on the particles in a brand of arsenate of lead. It has been proven that where the spray has a charge different from the leaf to be sprayed, the poison will stick better. As the leaf usually has a negative charge it is necessary for best results to have a poison fl-. W' - . . , . Mxlq with a positive charge. At the present time several manufacturers of stomach poisons X-Y . . . Eg sul are trying to do this for their products. iflffv .. ,1 A lliimr, Y .M ,W Y , V, Y Y W .. ff? tf::EZf'147i?'Tf.f?3f ff-T f3ff5if- 1'-'XT' :'2fi--51555 YQ f A Page Tbiriy-seven

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.Ni A.- 1 vi nfl ff ffST?.T12f41ii??t,.a..u.-.,n.,.v f f f:, f.a4ffa- . R1 f . - . , f as ee 4 L , of R cfffffr is 'D'X f?Ti3X1TX Vksffs Axxllif f frail-ff,f1i:s.,i m ?,,. X R . if R' f :fff l ' ' 'li X 1 ,ffl lil -ffl. il sky!!! I, oz' wifi CC K0 lffi , A- NN Q . 'X SJ 1 05 ' ' illgg r X, 5 4 ai fry! . gf: 501 .CDN N K1 V :iz I if i QA :Q l, YL W O , fl l gi 2. Back row: M. E. MATTISON, j. XV. NELSON, C. A. SM1TH, L. P. KARACSONYI, L. ZELENY, OLGA l ' 5, i FREDERIKSEN, O. SKOVHOLT, S. I. ARONOVSKY, W. R. BROWN, M. C. MARRLEY, C. E. FERRARL 'f Miflrllv row: C. E. RIMPILA, G. W. TAYLQR, R. POWERS, MRBELLE LINDEMAN, C. H. BAILEY, HILDA WIESE, 1 Y R. A. GORTNER, C. KENNEDY, L. S. PALMER, RACHEL RUDE, C. E. CZARNETZRY. ff Frou! row: WM. KAHLE, A. G. O. WHITESIDE, C. B. CONWAY, C. E. MANGELS, C. B. Tl-KOR, H. O. Q. WILES, HANS STROMBERG, H. P. MORRIS, O. G. JENSEN, ALLEN SAND1-loEF, W. M. SANDSTROM. 4 Rfk I Q The Division of Agricultural Biochemistry 1, Q X . S i HE division of Agricultural Biochemistry offers courses in the School of Agri- X I 1 culture which are designed to acquaint the student with the role that chemistry l fi i plays both in the science and practice of agriculture, and in the problems of iq 'ah 11 if li NX R .ome ma ing. Pg 2-. Since all living organisms are composed of chemical compounds and many of the ,Q reactions of life can already be interpreted in terms of chemical reactions, it was felt laps desirable that the student should early in his studies come in contact with chemical 1 Kg: Dx 3 nomenclature and the chemical mode of thought. It was believed that this would con- lf'l tribute markedly to his understanding of principles of practical agriculture as taught in courses given by other divisions of the School of Agriculture. YM' V- . . . . . . 1 is-Q41 All of the chemical work of the Minnesota Experiment Station is centered in this ' la division and many of the projects under investigation deal directly with problems vitally X affecting the welfare of the farmers of Minnesota. Thus, this division cooperates with Ilifl the Division of Dairy Husbandry in the study of mineral deficiency of farm animals as dm pf Q affecting the well being and the milk production of dairy cattle, with the Dairy Divi- Q sion and the Veterinary Division in nutrition factors as influencing disease conditions of ' l' it il farm animals, and extensive investigations are under way on the inheritance of the X- n n o u s l :fig eiiiciency of food utilization by animals. ' , ft-I l ffm? 1551 llcagg 'V Qi . ,rg ,f 1 ,ljs +5 1, Tl 91 .413 ' ' .- ' j L .,,,g:-L' if ' 1'-if R' '- Lffl I KQV. Give' Kuff Xff... 92 Page Tlairly-nine