In quoting articles, please mention this BULLETIN. 



CONTENTS 



^ 



First Part : ORIGINAI^ ARTICI^ES. 

 Prof. GiACOMO Rossi : Imlustrial Retting of Textile Plants by Microbiological Action. Page 1067 



Second Part : ABSTRACTS. 



AGRICUIvTURAIy INTELLIGENCE. 

 I. — General Information. 



Rural Hygiene. — 840. Recent Researches on the Possible Transmission of Animal Trji^a- 

 nosomiasis to Man. * 



ExPERiaiENT.\L .\ND An.\lytic.\l Work. — -841. Recent Investigations at the Imperial Insti- 

 tute in reference to Maximiliana Fruits, Tobacco, Coffee, Medicinal and Poisonous Plants 

 and Silk. 



II. — Crops and Cultivation. 



a) GENER.'iL. 



Soil Physics, Chemistry and Microbiology. — 842. On the Origin of Red Soil. — 843. Re- 

 searches in Agricultural Bacteriology carried out in Denmark during the Period 1904- 

 1914. — 844. Conversion of Soluble Phosphoric Acid into Insoluble Phosphoric Acid in the 

 Soil under the Influence of Physical, Chemical and Biological Factors. 



M.ANURES .\ND >L\NURiXG. — 845. Rapid and Simple Determination of the Nitrogen in Liquid 

 Manure by means of a Densimeter. — 846. Experiments on Humogen or Bacterised Peat. 



h) Speci.\l. 



Agricultur.\l Botany, Chemistry and Physiology of 1'l.\nts. — 847. Growth of the Root 

 System of Medicago sativa. — 848. The Taxonomic Value and Structure of the Peach 

 Glands, — 849. The Root Nodules aiCeanothus americanamidoi Cycadaceae. — 850. The 

 Enzymes Zymase and Carboxylase in the Storage Organs of the Potato and Sugar Beet . — 

 851. Investigations into the Part played by the Amylase in Potato Tubers. — 852. Amount 

 of Humic Substance in Decomposing Leaves. — 853. On the Nutrition of Green Plants by 

 means of Organic Substances. — 854. The Influence of Boron on Plant Growth. — 835. The 

 Influence of Strontixmi Salts on Wheat. —856. E.xperimeiits in connection with the Assi- 

 milation of Potassium and Sfxlium Ions by the Sugar Beet . 



