CONTENTS. Ill 



Page. 



The nitrogen foiupoumls of tli(> fundnnicntal rocks. Hall and .Millor 710 



( »n llu' (iiit'stion of nitrili'-aliun in tlu' soa, Issa1sc*liL'nl<o 



C^nantity of nitric nitroi-'cn in soils variously cultivated, .Montanari 



Mustard in relation to nitro,uen assimilation, Lennncrniann and IManck 



("licniical lah.iratory of the I'loti Stalion, i;»u7. \\'elltel and Winkler 



Action of carbon liisnlphid and other substances on soils, StTirnier et al 



Iiitlnenee of oxygen on vegetable matter. Carbone and .Marincola-Cuttaueo 



Notes on the role of micro-organisms in niodein agriculture, Ileinze 



Nutrition of nitrogenous bacteria, Krzemieniewska 



Inotulation experiments witli Azotobacter; bacteriological studies In 



Madison soil; ammonitication as aft'ected by soil treatment, Lipman 



Legume bacteria. Edwards and I'.arlow 



r.eneficial bacteria for legununons crops, Karp-Tlioinas 



The resistant power of root bacteria of leguminous jilants, Simon 



Increasing the yield by inocnlation with 2sitragiu, Westmann and IIiltuer_ 



The new agriculture, Rottomley 



The productiveness of the soil, Gregoire 



The planting and reclamation of moors and bogs in r.elgium, (Jrenfell 



I'rogre.ss in moor culture during the last 25 years, Fleischer et al 



New methods in the field of moor culture. Tacke 



Modern and early work u|)on the question of root excretions, Reed 



Crop rotation and soil exhaustion, Fletcher 



Annual review of agronomy, Zolla 



The decomiiosition of nianni-e, SJollema and De Kui.jter de Wildt 



Absorption of atmosplu-ric moisture b.v nitrogenous manures. lirownlee 



Impurity of nitrate of soda and the use of crude nitrate, De Grazia 



Comparative tests of sulphate of annnonia and nitrate of soda, l>achmauu 

 Comiiarison of organic nitrogenous fertilizer with nitrate of soda, l*opp__ 



The use of nitrogenous fertilizers and of nitrate of lime, Mali)eaux 



Tests of the fertilizing value of synthetic calcium nitrate, I'asserini 



New sources of nitrogen, Gilchrist 



IJesults of fertilizer experiments with nitrogen lime, Bachmanu 



Kxperiments with lime nitrogen as a fertilizer, I)usserre 



Trials of calcium cyanannd in comparison with other nitrogen fertilizers. 



Intlueiice of .soil hunudity on action of calcium cyanannd, De (Jrazia 



Nitiilication of calcium cyanamid in various types of soil, De Grazia 



Absorption of calcium cyanamid in soil, Kajjpen 



l-^xperiments with calcium cyanamid and leucite, Handiiu 



Causes that determine liberation of potash in leucite in soil, Bernardini 



What are the laws controlling potash assimilation V Winnner et al 



Com|>arative value of ordinary suiieri)hosphate, dried and calcined phos- 



jihale and metaphosphate of lime. De Molinari and Ligot 



^■alue of phosphoric arid in superi'bosiihates and slag, De Calnwe 



Factors which in II uence effect of dillicult l.vsoluble ]iliosphates, Siiderbainn_ 



Increase or decrease of nitrogen in the soil l)y manuring, (Jllchrist 



E(T«H-t of lime on availability of soil constituents, (Juthrie and Cohen 



lulluence of lime and magnesia on plants, liernardini and Corso 



Coojicralive fertilizer trials in T.KtT, Forsberg and Wt'ibuU 



Chemical manures in Italy, Towsey : 



The nitrogen (piestion in Germany, Caro 



\iiluation and extent of tln> nitrate of scjdu deposits of Chile, Bertram! 



The great nitrate lields of Chile 



♦ 'omposition of some Chilean caliches, Dafert 



Nitiate facts and ligures, IIKIS, James 



Production of ammonium sulphate and gas from peat, Frank 



The idtrilication of peal, Wagner 



The nilrilication of jieat 



The nitiilication of peat, Neidianss 



Du the utilization of the nitrogen of distillation residues, Kffroiit 



The prei>aratioii and \dilizaliou of nitrogen compoinids, Eyde et al 



The lixaiion of atmospbeiic lutrogen as cyanamid 



Formation of nitrogen oxid in high tension arcs, Ilaber and Koenig 



< >xidalion of nllrogrn in liii,'b leiisiou arcs under reduced pressure. Ivoenig_ 



The manufacture of cyanamid in France. I'luvinage 



On the formation of lime nitrogen, .lacoby 



Uu the lixaiion of nitrogen by calcium curbid, Pollacci 



