1917] 



INDEX OF SUBJECTS. 



967 



Plant— Ck)iitinued. Page, 



diseases— continued. 



in Bonn-Poppelsdorf and Geisenheim 47 



in Britisli Guiana 846 



in Connecticut, Conn. State 47 



in Delaware 540 



in England 541 



in Fiji 347 



in Holland 847 



in India 449 



in Massachusetts, Mass 145 



in New Jersey, N.J 845 



in New York 347 



in Russia 646 



in Tasmania 846 



in tropical America 746 



in Turkestan 647 



in Uganda 746 



in West Virginia 653 



in Wisconsin, Wis 845 



introduction into United States 244 



notes, Alaska 448 



notes, Can 47 



notes, Mich 746 



studies, cooperation in 540 



transmission by seeds 844 



treatise 236, 540, 628, 645 



(See also different host plants.) 



ecology and soil science 523 



hybrids, behavior 521 



hybrids, inheritance from both parents . . 331 



kingdom raw materials 628 



lice, notes, N.J 854 



(See also Apple aphis, etc.) 



nutrition, treatise 114 



oils of Russia 802 



organs, partly dried, respiration 824 



pathology, prophylaxis in 645 



peroxidases, action of 609 



physiology, treatise 429 



pigments, transformation 730 



residues, humiflcation 622 



respiration, investigations 329 



roots and soil, medium of exchange 



between 128 



roots, relation to soil atmosphere 733 



species, relationships 221 



succession, studies 144, 327 



teratology, treatise 430 



tissue, absorption of acids by 433 



tissue, depression of freezing point 823 



tissues, medium of exchange between 128 



Plantain black rot, notes 48 



Plants- 

 abnormalities 734 



abnormalities, N.J 837 



abscission in 225 



absorption of Uquids by aerial parts 328 



action of saline solutions on 224 



alpine, chemical biology 329 



and bacteria, symbiosis between 632 



as affected by radium 526 



barium in 202 



classification 411 



climatic index 824 



climatic injury to, U.S.D.A 431 



colonial, treatise 142 



Plants— Continued. 



composition in relation to soil fertility ... 622 



desert, cell sap density 327,823 



dioecious, change of sex ratios in 736 



distribution, Alaska 494 



electromotive phenomena in 732 



feeding power, Wis 626 



flavone derivatives in 329 



flowering, as affected by insecticides — 733 



flowering, organic nutriment 225 



genotypical factors, mutual influence 434 



glucosid formation by 329 



green, nutrition by organic substances. . . 432 



greenhouse, fumigation, U.S.D.A 842 



greenhouse, root knot of 349 



growing in sand cultures 31 



growing under control conditions 524 



growth at different air pressures 730 



growth in relation to cUmate 809 



growth in relation to terrestrial radiation . 617 



growth measurements 226 



growth mechanism and conditions 425 



growth studies 327 



heUotropic stimulus in 330 



herbaceous, culture experiments. Can. . . 39 



herbaceous, roots of 223 



herbaceous, white spot of 449 



house , injuries to 150 



hydrogen ion concentration and natural 



immunity in 541 



inheritance from different parts of 27 



inheritance in 27, 521 



inheritance of disease resistance in. Wis. . 845 



Uving, physics of 107 



medicinal, cultiu-e and drying 642 



medicinal, growing and collecting 743 



morphological and physiological charac- 

 ters, correlation 221 



nematodes affecting 150 



nutritive solutions for 31 



ornamental, cultiure 535 



ornamental, culture experiments 241 



ornamental, culture experiments, U.S. 



D.A 137 



ornamental, diseasesof 541 



ornamental, tests, Alaska 443 



potted, sciara maggots on 460 



prairie, transpiration and assimilation 



in 734 



resplratioQ at various temperatures 28 



rest period in 224 



reversible removal of salts and bases from . 224 



salt water, Inheritance in 27 



statolith apparatus in 729 



stimulation in 525 



succulent, behavior under desiccation 327 



transpiration in, U.S.D.A 225 



transpiring power 824 



tumors in 46 



utilization of ammonia by 631, 632 



utilization of sugar by 125 



water culture experiments 731 



water transfer in 29 



wilting of 320 



woody, forcing 431 



Plasmodiophora brassicx. (See Cabbage club 

 root.) 



