PREFACE. XIX 



five hundred. Particulars of the results of the author's researches 

 and inquiries, in some of the richest and most fattening pastures 

 in Devonshire, Lincolnshire, and in the Vale of Aylesbury, will 

 also be found in their proper places. Those results were most 

 satisfactory, being fully demonstrative of the truth of the conclu- 

 sions which had been drawn from the results of former and of 

 recent experiments made on those grasses, and other plants, 

 which the author found to constitute the entire herbage of these 

 celebrated pastures. The proportions in which the different 

 grasses and plants were found combined in these pastures, were 

 carefully ascertained by personal examinations of the pastures, 

 and by the aid of portions of the turf being transplanted to the 

 experimental grass-garden. The important subject of saving the 

 seeds of the essential permanent pasture grasses on every farm, 

 for the supply of its own wants, will be found pointed out, and 

 directions given for putting it into immediate practice. The soils 

 of the pastures most celebrated for fattening have been chemi- 

 cally examined, and the results stated. The comparative value 

 of several new species of grasses, not mentioned in the former 

 edition, is stated in this. The table of contents will shew the 

 arrangement of the details of the work ; and the index will point 

 out any particular object of inquiry connected with the culti- 

 vation of the grasses, and with the comparative value of the 

 different species. The new mode of returning tillage land to 

 pasture, named transplanting turf, is mentioned in the Appendix, 

 and its merits discussed. The results of the author's inquiries 

 respecting the best kinds of grasses for the supply of straw in the 

 manufacture of straw bonnets, in imitation of the celebrated 

 Leghorn manufacture, will also be found in the Appendix. 



The figures of the seeds and of the plants of grasses, given in 

 this work, except those of Holcus odoratus repens and Poa annua, 

 are by Mr. Louis Parez, and drawn on stone. The figure of 

 Holcus odoratus repens is engraved on copper, and that of the 

 Poa annua on wood. 



The author earnestly solicits such of his readers as may not 



