1920] 



INDEX OF SUBJECTS. 



947 



Dermacentroxenus rickettM, notes, GO. 

 Detroit Milk Commission, report, Mich., 



178. 

 Dew, effect on boll weevil poisoning, 162. 

 Dewberries, breeding experiments, 53G. 

 Dewberry diseases, control, 111., 847. 

 Dextrin, gold number determination, 12. 

 Dextrins, cellulose, studies, 524. 

 Dextrose and levulose, ratio of utilization 



by plants, 730. 

 Diabetes — 



control by fasting and dietary restric- 

 tion, 862. 

 dietetic treatment, causes of failure, 



862. 

 effect of protein diets, 862. 

 experimental production in dog, 370. 

 treatment, monogi-aph, 370. 

 Diabetic foods, 63. 



Diabetic foods, anal.vses, Conn.State, 861. 

 Diabrotica spp., relation to cucumber wilt, 



U.S.D.A., 245. 

 Diabrotica vittata. (See Cucumber 



beetle, striped.) 

 Diallel crossing, use of term, 866. 

 Diaprepen abbreviatus, notes, 252. 

 Diarthronomijia hypograa — 

 notes. Conn.State. 251. 

 studios, U.S.D.A., 360. 

 Diastase, effect on cellulose dextrins, 524. 

 Diastatic capacity, determination, 802. 

 Diatoms of New Jersey soils, 217. 

 Diatrwa — 



auHcilia, notes, 852. 

 saccharalia. (See Sugar cane borer.) 

 Diazo value of urine as affected by nutri- 

 tion, 368. 

 Dlcyandiamid — 



in calcium cyanamid, determination, 



413, 804. 

 toxic ac-tion in soils, 426. 

 Didymana perforans on lettuce, 152. 

 Diet — 



accessory factors. (See Vitamins.) 

 balancing, graphic method, 167. 

 deficiency — 



as related to edema, 66. 

 disease, pathogenesis, 664. 

 diseases, 166, 262, 263, 264, 461, 



462. 

 dlseasi> in French army, 168. 

 diseases in Vienna, 667. 



(See also Beriberi, Pellagra, 

 Polyneuritis, Rickets, and 

 Scurvy.) 

 studies, 62, 63, 165, 369. 

 deficient — 



effect on monkeys, 666. 

 relation to cancer, 667. 

 for adults and children, textbook, 494. 

 of British and Indian troops In re- 

 lation to disease, 262. 

 of children. (See Children.) 

 of hotel employees, supervising, 663. 

 of infants. (See Infants.) 

 value of coarse ground grain in, Can., 

 366. 



Dietotherapy, treatise, 261. 

 DioonatopuK lucidua n. sp., description, 857. 

 Dille, .\., biographical sketch, 100. 

 Diloboderua abderus, notes, 450. 

 Diphenylamin reaction, color changes of, 



505. 

 Diplocarpon roao", notes, 152. 

 Diplodia — 



corchori, notes, 444. 



{/ossypina, notes, 243. 



griff oni, notes, 753. 



sp. on rubber, 45. 

 Diplodia, studies, Mo.. 749. 

 Dipping tanks for cattle, construction, 90. 

 Diptera, muscoid, parasites of, 662. 

 Disease control by machine dish-washing, 



261. 

 Diseases — 



contagious, diagnosis, prophylaxis, and 

 therapy, 76. 



deficiency. (See Diet deficiency dis- 

 eases.) 



of animals. (See Animal diseases.) 



of plants. (.See Plant diseases.) 

 Dish washing, machine, relation to disease 



control, 261. 

 Disinfectants — 



chemical, absolute and relative power, 

 78. 



culture media for testing, 181. 



resistance of intracellular organisms 

 to, 822. 



seed injury from, prevention, 844. 

 Distillers' dried grains, analyses, 867 ; 



Ky., 373. 

 Ditch digging, dynamite for, 480. 

 Ditches, drainage and irrigation. (See 



Drainage and Irrigation.) 

 Divining rod, use, 478. 

 Dockage, in wheat, method of determining, 



U.S.D.A., 535. 

 Dodder — 



in Idaho, control, 833. 



on citrus and olive, 652. 

 Dogs — 



cestodes of, keys, 80. 



degeneration of testes, 269. 



Great Dane, inheritance of coat color, 

 660. 



piebald spotting in, origin, 669. 



spermatogensis of, 269. 

 Domestic science. (See Home economics.) 

 Dothiorella ffrcgaria on walnut, 350. 

 Douglas fir — 



forest, establishment, 650. 



region, forestry in, 343. 

 Dourine, control, 272. 

 Drainage— 



as an antimalaria measure, 85. 



ditch, Tempe, Ariz., 789. 



ditches, dredged, water flow In, 

 U.S.D.A., 478. 



ditches, maintenance, 280. 



for reclamation of peat soils, 420 ; 

 Minn., 814. 



for reclamation of push soils, Iowa, 21. 



In St. Louis, 689. 



I 



