CONTENTS. Ill 



I'age. 



The reliitioii of soils' to tlie litriiiatioii of jiroiiml water, Mczjier HI!» 



Soil wastairi", C'hamherliii (j]9 



Soil tiMii|>eratun' investigations, llecker 619 



C)bservati(in.s ami researelien in soil temperature, I)e<iiazia 620 



Fixation of atmosiilierie nitrogen by legnniinous jilants, I'asson ()2() 



Cross-inoculatioii of leginiiiiioiis ]ilants with tubercle bacteria, Nobbeet al (>20 



Nitrogen in dead forest cover, Henry H20 



The influence of 1)acteria on evajxjration from soils, Stigell 620 



The behavior of soil organisms in solution and in soils, Stevens et al 620 



NitrilicatioM in acitl soils. Hall, Miller, and (iiminghani 621 



N'itrogen-lixing bacteria. III, Lohnia and Pillai 621 



On dicyandiamid bacteria, Perotti 622 



A review of the bacteriology of ammonium compounds, Khrenberg 622 



The fixation of annnoinacal nitrogen by zeolites in soils, I'feiffer et al 622 



Action of ammoiiiacal nitrogen under the influence of liihe, Pfeiffer et al 622 



The effect of ammonium suljihate an<l nitrate of soda, Ltihnisand Blobel 623 



Annnonium suli>hateand nitrate of soda, L()hnisand Blobid, trans, by Koning. 623 



The utilization of nitrogen in tlie form of ammonium nitrate, Pfeiffer et al 623 



Lime nitrogen, nitrogen lime, and limeniter, Sjollemaand I)e Kuijterde Wildt. 623 



Fertilizer experiments with nitrogen lime for potatoes, Stutzer 624 



Fertilizer exjieriments with lime niter on tobacco and tomatoes in 1907, Stutzer. 624 



Experiments in manuring wheat with calcium nitrate, Paris 624 



utilization of atmospheric nitrogen in production of calcium cyanamid, Frank. 624 



Phosphate deposits of Algeria and Tunis 624 



rhospiiate production in Algeria and Tunis, 1907 625 



Composition and valueof sugar beetvinasse, Verbiese and Darras-Verbiese 625 



Commercial fertilizers, P>urd 625 



Analyses of commercial fertilizers and Paris green, Halligan et al 625 



Analyses and valuations of commi-rcial fertilizers, Cathcart et al 625 



Analyses of fertilizers collected by commissioner of agriculture during 1908. .. 625 



AtiKUTLTrKAL BOTANY. 



l-.xperiments in the mitrition of jtlants. Petit . 625 



Investigations on the localization of saccharose in sugar bei'ts, Peklo 626 



The osmotic properties of the root hairs of certain salt-marsh plants, Hill 626 



Action of compresse<l gas on activity of micro-organisms and ferments, Foa. . . 626 



The effect of dialysis on vegetable rennets, ( Jerber (527 



Arsenic in vegetation exposed to smelter smoke, Swain and Harkins 627 



Effect of illuminating gas and ethylene on carnations, Crocker and Knight. . . 627 



The viability of seeds, Thornl)er 628 



On the longevity of seeds, Kwart 628 



Methoils antl causes of evolution. Cook 629 



The present state of knowledge of heredity in Pisum, Lock ti29 



FIELD CHOPS. 



The revogetation of overgrazed range areas, Sampson and ('oville 629 



Deef) fall plowing anrl the seed bed, Knapp 630 



Electricity in agriculture. Lodge 630 



Duty of water. True 631 



American dry farming, Strawbridge 632 



[Agriculture in the Congo Free State], Pynaert 632 



Experiments with field cro])s], Kilgore etal 633 



Rotation experiments with cotton, corn, cowpeas, and oats, Dodson 634 



< irain without irrigation. True 634 



The systematic cliu^sification and naming of grain varieties, von Riimker (534 



A Ifal fa, Westgate (534 



Alfalfa investigations, Dinsmore (534 



Data for the international commission for the im|)rovement of barley (534 



A new basis for barley valuation and impipvement, ALinn 635 



The .\hndelian and lie N'riesian laws applied to cotton breeding, De l^oach (535 



U»'ap|K_'arance of a primitive chara<ter m cotton hybrids, Cook (536 



British cotton cultivation, Dunstan (536 



Cotton production, 1907, Steuart and Roper 636 



Flax ex i)eri uienta, 1 906 636 



