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blattrige Maranteen.— Mitth«? Euss. Gartenb. Ver. 1860. Heft 2. 

 pp. 81-97. 



Landeeek, Dr. — Botanische Mittheilungen aus Griechenland. Flora. 

 1860, pp. 705-713. Referring chiefly to economic products. 



Lange, Joh. — Pugillus plantarum imprimis hispanicarum. 82 pp. 

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Lawes, J. B., J. H. Gilbebt, and E. Pugh.— On the Sources of the 

 Nitrogen of Vegetation, with special reference to the question 

 whether Plants assimilate free or uncombined Nitrogen. (Abstract.) 

 E. S. Proc. 21 June, 1860. pp. 16. 



The experiments of the authors with certain Graminaceae and 

 Leguminosae did not indicate the assimilation of free nitrogen by- 

 plants. 



Eurther investigations are required upon the question, and also 

 as to the sources whence combined nitrogen may be derived by 

 vegetation. 



Lawson, Geokge. — Contributions to Microscopical Analysis : — Celas- 

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 Trans. Bot. Soc. Edinb. vi. pp. 362-8. 



Eeferring to the histological character of the colouring sub- 

 stance of the cells of the arillus, which occurs in the form of 

 minute, elongated, and straight or curved granules of a bright 

 scarlet colour. 



Le Jolis, Aug. — Plantes vasculaires des environs de Cherbourg. 

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An account of the climate and general character of the vege- 

 tation of the environs of Cherbourg is prefixed to the Catalogue of 

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 the ' Elore de Erance' of Grenier and Godron. 



Line-ley, John. — Descriptions of Coniferae sent from Japan, by J. 

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Livingstone, J. S.— On the Anaesthetic effects of Chloroform, Ether, 

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 vi. p. 325. 



The anaesthetic influence was found always to proceed from 

 above downwards. The most marked effects were produced by 

 amylene. 



— — Experiments on the Effects of Narcotic and Irritant Gases on 

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Details are given of the effects of Sulphurous and Hydro- 

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 As regards their action on plants, the author distinguishes the two 

 classes of narcotic and irritant gases. Plants exposed to the 

 former until the leaves begin to droop, although the colour remains 

 unchanged, inevitably perish. In irritant gases the action is more 

 local, affecting first the tips of the leaves, which become disco- 



