CONTENTS. 



(All Rights regenvd.) 



I'AOE 



■1. Russell, E. J. and Appleyard, A. The Atmosphere of the 

 Soil: its Composition and the Causes of Variation. (With 

 17 Text-figures) 1 



2. Cunningham, A. Studies on Soil Protozoa .... 49 



3. Hutchinson, H. B., and MacLennan, K. Studies on the Lime 



Requirements of Certain Soils. (With Plate I and 4 Text- 

 figures) ...■■■■■■■ ^^ 



4. Martin, C. H., and Lewin, K. R. Notes on Some Methods 



for the Examination of Soil Protozoa. (With Plates II 



and III) 106 



5. Eyre, J. V., and Fishee, E. A. Some Considerations affecting 



the Growing of Linseed as a Farm Crop in England. 



I. Variations in the Oil Content. (With 2 Text-figures) . 120 



Tke Journal of Agrieultural Science is issued in quarterly parts of about 100 page.s, 

 with plates and figures, foui- parts constituting a volume. 



Volumes I, IT, IIIj IV, V and VI now ready. In Four Parts, paper covers, 15*. n<;t 

 per volume. Bound in Buckram, ISs. Qd, net per volume. 



Papers for publication may be sent to Profes.sor T. B. Wood, M.A,, Sohool of 

 Agriculture, Cambridge, or to the associate Editoi-s. Other communications should be 

 addressed to the University Press, Cambridge. 



Contributors will receive twenty-five copies of their papers free. A limited number of 

 additional copies may be obtained at cost price if ordered when final proof is returned. 



The subscription price, payable in advance, is 16«. per vohune (post free) ; single 

 numbers 5». net Subscriptions may bo sent to any Bookseller, or to Mr C. F. Clay. 

 Manager, Cambridge University Press, Fetter Lane, London, E.U. 



The Cambridge University Press hiis appointed the University of Cbicjigo Press agents 

 for the sale of The Journal of Agricultural Science in the United States of America and has 

 authorised them to charge the following prices: — Subscription, ?3'7P.not per volume; 

 single copies, $1 '25 net. -••'•. 



camdbiboe: pbisted bv jobx olay, m.*. at the cnh-ebsitt press. 



