must not be forgotten that turnips _fully matured_ in the field rather deteriorate than otherwise after a few weeks' storage. Many agriculturists consider that there is a strict relation between the specific gravity, or comparative weight of the bulb, and its nutritive value; others believe that a very large turnip must necessarily be inferior in feeding qualities to a small one; whilst not a few maintain that neither its size nor its specific gravity is an indication of its feeding qualities. Dr. Anderson, who has specially investigated a portion of this subject, states that "the specific gravity of the whole turnip cannot be accepted as indicating its real nutritive value, the proportion of air in the cells being the determining element in such results; that there is no constant relation between the specific gravity of, and the nitrogen compounds in, the bulb; and that such relation does exist between the specific gravity of the expressed juice and the nitrogen compounds and solid constituents." Dr. Anderson allows, however, that the best varieties of the turnip have the highest specific gravity; which admission--coupled with the fact admitted by all experimenters that the heavy roots store best--lead me to adopt the opinions of those who consider great specific gravity as one of the favorable indications of its nutritive value. With respect to size, I prefer bulbs of moderate dimensions; the monsters that win the prizes at our agricultural shows--and which, in general, are _forced_--are inferior in feeding qualities, are always _spongy_, and almost invariably rot when stored. The composition of the turnip is influenced not only by the nature of the soil on which it is grown, but also by that of the manure applied to it. The most reliable authorities are agreed that turnips raised on Peruvian guano are watery, and do not keep well; but that with a mixture of Peruvian guano and superphosphate of lime, with phospho-guano, or with farmyard manure supplemented with a moderate amount of guano, the most nutritious and firm bulbs are produced. Turnip-tops have been analysed by Voelcker, with the following results:-- ONE HUNDRED PARTS CONTAIN-- White. Swedish. Water 91·284 88·367 Nitrogen compounds 2·456 2·087 Non-nitrogenous matters (gum, sugar, &c.) 0·648 1·612 Ditto, as woody fibre 4·092 5·638 Mineral matter 1·520 2·296 ------- ------- 100·000 100·000