1916] 



INDEX OF SUBJECTS. 



973 



Plant — Continued. Varc. 

 diseases — continue<l. 



In Sicily 4r> 



in Turin O'lO 



in I'Kanda 4r> 



in WiigcnlnKen 24;{ 



in West Indies 41 



in Wisconsin •_ S44 



iuvcsllKiitious. Wis 544 



investigations, methods ,S44 



notes, Oreg 24l' 



relation to meteorology S44 



treatise 835 



(See also different host 

 plants.) 



enzyms, studies 334 



exploration In China, U.S.D.A 140 



food, production in soils 322,424 



food, removal by crops and 



drainage 623 



globulins, preparation 9 



inspection. (See Nursery in- 

 spection.) 



lice, notes oC 



lice, in West Vii-ginia 657 



(Sec also Apple aphis, etc.) 



life, treatise 128 



membranes, nonliving, perme- 

 ability to water 224 



respiration investigations 821 



succession in a ravine 27 



succession under irrigation, 



U.S.D.A. 732 



tissue, killing by low tempera- 

 ture 234 



Plants — 



absorption of liquids by aerial 



parts 331 



absorption of nutritive sub- 

 stances by 223 



acclimation by means of graft- 

 ing 444 



aquiferous vessels in 224 



as affected by artificial closing 



of stomata 224 



as affected by chlorids 423 



as affected by illuminating gas 63G 



as affected by smoke 133 



as affected by sulphur dioxid 636 



assimilation of atmospheric ni- 

 trogen by 435 



assimilation of carbon dioxid by 633 



climatic index 732 



electroculture experiments 22:^. 



green, carbohydrate content 131 



growth as affected by carbon bl- 



sulphid, U.S.D.A 20 



growth as affected by light 129 



growth as affected by osmotic 



pressure in nutrient solutions- 434 

 growth as affected by sodium 



salts, U.S.D.A 816 



growth as affected by stimu- 

 lants 434 



growth, critical periods of, 



U.S.D.A 617 



83103°— 17 7 



I'lanis — Continued. I'uko. 



growth in lientcd boIIs 722 



growth in relation to temp*>rn- 



ture 328 



hematoid Iron compounds in 634 



herbaceous, from China 450 



housf, treatise 450 



Imbniitioiiiil swelling 822 



Imports, U.S.D.A 29 



in Kotanic Cardens, (Jeorgetown, 



Urltlsh Guiana 643 



in Ganeshkhlnd Botanical Gar- 

 den 643 



Influence of centrifugal force on _ 431 

 inheritance of cliarnctcfH ac- 

 quired in salt water 228 



maturation In 131 



myrtiicfous. pos.slbllltles of 141 



notebook for study of M)6 



ornamental, crown rot of, III 754 



ornamental, for Maine 840 



osmotic pressure in 25, 26, 822 



oxidases In 130 



periodicity In 632 



pliototropic and geotropic reac- 

 tions in 632 



polsonou.s, notes, U.S.D.A 383 



poisonous, of Idaho, Idaho 383 



poisonous, on ranges of Mon- 

 tana, Mont 781 



pollen sterility in 731 



prairie, ecological histology 820 



propagation 141, 642, 742 



resistance to injurious influ- 

 ences 636 



rest period in. Mo 221 



rest period in, shortening 436 



self-protection against Cuscuta__ 460 



senile changes in 222 



sensitiveness to lime 430 



succulent, automatic movements. 27 



synthetic processes in 431 



transpiration as affected by alti- 

 tude and habitat 732 



transpiration in 633 



twining of 431 



utilization of nitrates by 28 



water, gas exchange in 431 



wild, in cookery 859 



wild, use as food by Indians 470 



wilting points 21 



woody, annual growth of 841 



woody, of Switzerland 842 



woody, reserve fat in 225 



wound parasitism and predispo- 

 sition in 347 



Plasmotliophora brassicce. (See Cab- 

 bage club root.) 



Plasmopara vUicola, studies M'^' 



Plenodomiifi fusromaculan^, studies. 653 

 Pleuro-pneumonia. contagious. (See 



Influenza, equine.) 

 Plcurotropis cplgonus In United 



States 700 



Pleurotus nidiformix, description 755 



Plowing experiments 735 



