Mr. Sinclair, by whom all the following details and calcu- 
lations are furnished. 
The dry extracts, supposed to contain the nutritive 
matter of the grasses, were sent to me for chemical exa- 
mination. The composition of some of them is stated 
in the table, page 138; I shall offer a few chemical ob- 
servations on others at the end of this Appendix. It will 
be found from the general conclusions, that the mode of 
determining the nutritive power of the grasses, by the 
quantity of matter they contain soluble in water, is suf- 
ficiently accurate for all the purposes of agricultural in- 
vestigation. 
BOOKS QUOTED IN THE FOLLOWING- PAGES. 
Curt. Lond. — Flora Londinensis. By William Curtis, 2 vols. London 
1798, fol. 
FI. Dan. — Florae Danica, or leones Plantarum sponte nascentium in Regnis 
Daniae et Norvegiae, editae a Ge. iEder. Hafniae 1761, fol. 
Engl. Bot. — English Botany, by J. E. Smith, M. D. ; the Figures by 
J. Sowerby. London 1790, 8vo. 
W. B. — Botanical Arrangements. By Dr. Withering. London 1801, 
4 vols. 
Huds. — Hudsoni Flora Anglica, 1778, vol. ii. 
Host. G. A. — Nic. Thomae Host leones et Descriptiones Graminum 
Austriacorum, vol. i — iii. Vindobonae 1801, fol. 
Hort. Kew. — • Hortus Kewensis, By W. J. Aiton, vol. i. London 1810. 
