viii PREFACE 



5. Die NatiirlicJien Pflanze^ifamilien, by M. Eduard Hackel, of 

 which a translation has been made by Mr. F. Lamson-Scribner. 



6. M. Gustave Heuze's Les Paturages, Les Prairies Naturelles et 

 Les Herbages, an excellent work published by La Librairie Agricole 

 de la Maison Rustique, Paris. 



7. The Nutritive Value and Produce of some Permaitent Grasses, 

 by Mr. D. Wilson, M.A., F.C.S., a most important memoir, published 

 in the Transactions of the Highland and Agricultural Society of 

 Scotland. 



We have also pleasure in acknowledging the courteous help given 

 by the following in the matter of engravings : Messrs. Vilmorin- 

 Andrieux and Cie., Paris; Messrs. Macmillan and Co., Ltd., London, 

 engravings of (l) Spike of Ergotised Rye, page 11, (2) Seeds of 

 Clovers and Dodder, page 27, and (3) Dodder, page 28 : all engraved 

 by Mr. Worthington Smith, whose valuable work, The Diseases of 

 Farm and Garden Crops, will be known to many of our readers ; La 

 Librairie Agricole de la Maison Rustique, Paris, for illustrations of 

 (i) Dodder, page 23, and (2) Broom Rape, page 28 ; and the U.S.A. 

 Department of Agriculture for illustrations of home-made germinators 

 (Year-book of 1895, Mr. A. J. Pieters). 



