Water 75·423 Flesh-formers 2·705 Fatty matter 0·892 Gum, pectin, sugar, &c. 9·134 Woody-fibre 10·488 Mineral matter 1·358 ------- 100·000 _Buckwheat_ is occasionally cut in a green state and used as food for stock. Its composition, according to Einhof and Crome, is as follows:-- Water 82·5 Nitrogenous compounds 0·2 Extractive matters 2·6 Starch, &c. 4·7 Cellulose 10·0 ----- 100·0 Rape is one of our most valuable plants for stock feeding. Two varieties are cultivated in these countries--the summer rape (_Brassica Campestris oleifera_) and winter rape (_Brassica rapus_). The great utility of rape arises from the circumstance of its being generally obtained as a _stolen_ crop; for otherwise it is not quite equal to other plants that might be substituted for it--cabbages, &c. This plant is very rich in oily matters, and has been found well adapted both for the feeding of cattle and the fattening of sheep. Its composition, according to Voelcker, is shown in this table:-- COMPOSITION OF GREEN RAPE. Water 87·050 Flesh-formers 3·133 Fatty matters 0·649 Other respiratory substances 4·000 Woody fibre 3·560 Mineral matter (ash) 1·608 ------- 100·000 With respect to the value of rape for the feeding of stock in spring, Mr. Rham makes the following remarks:--