. Textbook of botany. Botany. 3i6 TEXTBOOK OF BOTANY more largely used in making sirup), and from the sap of the hard maple. Dextrose, otherwise known as glucose or grape sugar, occurs in grapes and many other fruits, and in honey. In nature it is usually associated with levulose (a sugar very similar to dextrose) and sometimes also with cane sugar. Dextrose is made commercially on a large scale by treating starch with sulphuric acid. It is only about three-fifths as sweet as cane sugar, and is correspondingly less valuable. It is largely used in brewing and in the making of sirups and candies
. Textbook of botany. Botany. 3i6 TEXTBOOK OF BOTANY more largely used in making sirup), and from the sap of the hard maple. Dextrose, otherwise known as glucose or grape sugar, occurs in grapes and many other fruits, and in honey. In nature it is usually associated with levulose (a sugar very similar to dextrose) and sometimes also with cane sugar. Dextrose is made commercially on a large scale by treating starch with sulphuric acid. It is only about three-fifths as sweet as cane sugar, and is correspondingly less valuable. It is largely used in brewing and in the making of sirups and candies. 335. Foods for Animals. — Besides the cereal grains, which are relatively as important for domestic animals as they are for man, there are many forage plants — that is, those which animals eat, either fresh as they are growing, or dried in the form of hay. The most extensively used forage plants are various grasses, some of them wild and some cultivated. Some of the sedge family are also useful in the same way, being commonly known also as "; In addition, certain „ ' '' , . members of the pulse family are very Fig. 174. — The cnm- . f j j son clover. important forage plants ; their value for this purpose is due in large part to their ability to use the free nitrogen of the air the help of the bacteria that live in their roots. It is for this reason that the clovers, alfalfa, the cow pea, and the soy bean can be raised successfully on nitrogen-poor soils and are valuable, especially if the crop is plowed under, in increas- ing the proportion of nitrogen-containing substances in the soil. Of several clovers used as forage plants, the most widely cultivated, especially in the northern United States, is the red clover. Crimson clover, a species of European origin, is raised to a considerable extent in the southeastern United States. Alfalfa has long been grown in Europe, and more. Please note that these images are extracted from scanned page image
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