THE LIME-MAGNESIA RATIO 



135 



Name of investigator Place and date 



Konovalov Russia, 1907-8 



Konovalov Russia, 1910 



Kossovich and Althausen. Russia, 1910 



Wheeler and Hartwell Rhode Island, 1904 



Lemmermann, Einecke 



and Fischer Germany, 1911 



Lemmermann, Foerster 



and Einecke Germany, 1911 



Gile Porto Rico, 1912 



Gile Porto Rico, 1913 



Tottingham Baltimore, 1914 



Gile and C. X. Ageton. . . .Porto Rico, 1913 

 Gile and C. N. Ageton. . . Porto Rico, 1913 



Meyer Germany, 1913 



Maze, Rout and Lemoigne France, 1913 



Pisciotta Italy, 1914 



Hutin Peru, 1914 



Russell England, 1912 



Hasselhoff Germany, 1914 



Hopkins Illinois, 1910 



Meggitt India 



Miege and Compain 



Hilgard and Loughridge.. .California 



Plants and medium 



Millet and oats, barley, maize- 

 Sand cultures, water cultures 



Wheat, lupines, Selaria italica 

 and oats. Water and sand cul- 

 tures 



Barley 



Pineapple. In pots 

 Rice. Culture solutions 



Bush beans 



Corn, lupines, vetch (one species) 



Cane 



In pots 



Wheat. Marshal brown silt 

 loam in pots 



In field 



Citrus trees. In field 



Indifferent Investigations 



Name of investigator Place and date Plants and medium 



Kearney and Cameron. . . .1902 



Ulbricht Oats, barley. Infield 



Ulbricht Yellow lupine, barley, vetch, 



radishes 



Schreiber 1895-96 Oats and turnips. In field 



Loew and Honda Japan, 1895-96 Conifer trees — Cryptomeria japo- 



nica, Thuja obtusa and Pinus 



densiflora 



Heinrich 1896-97 Lupines 



Passerini 1897-98 Wheat 



D. Meyer Oats, potatoes, horse beans, 



vetch, mixture of plants like 



grass and alfalfa. In pots 



Ulbricht Barley. In pots 



R. Averna-Sacca 1913 Grape vines, coffee plants, orange 



trees. In pots 



THE PLANT WORLD, VOL. 19, NO. .1, 1916 "V 



I'J 



ION. 



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