146 
Sorbinose 
d-fructose) 
Disaccharids. 
Saccharose (Cane sugar) 
d-glucose +d-fructose 
Trehalose (Fungus sugar) 
d-glucose + d-glucose 
Maltose (Malt sugar) 
d-glucose +d-glucose 
Lactose (Milk sugar) 
d-glucose + d-galactose 
Trisaccharids. 
Raffinose 
d-fructose-++-d-galactose + d- 
fructose 
Tetrasaccharids. 
Manneotetrose 
CosH4s022, d-fructose+d- 
glucose+d-galactose +d- 
galactose. 
THE CHEMISTRY OF THE PLANT 
(formula as for In juice of the fruit of the 
service-berry. 
These are to be looked upon as 
formed by the union of two 
(not necessarily similar) mole- 
cules of monosaccharids with 
the loss of H,O. Their arbi- 
trary formula is C12H»20i1. 
The exact arrangement ofthe 
groups within the molecule is 
still disputed, so that no at- 
tempt will be made to show 
it. The component monosac- 
charids are given in each case. 
Very abundant in the higher 
groups of plants in stems, 
roots and fruits. Found in 
sugar beet, sugar cane, Indian 
corn, maple, birch, and various 
palms, ete. 
Abundant in fungi. 
In germinating starchy seeds. 
Common in milk but only 
rarely in plants. 
These have the arbitrary for- 
mula CisH320;¢ and are looked 
upon as composed of three 
monosaccharid molecules 
joined with the loss of 2H.O. 
Occurs in the sugar beet 
(abundant in beet molasses), 
cotton seeds, ete. | 
These are formed by the 
union of four monosaccharids 
with loss of water. 
In gum of the Manna ash 
(Fraxinus ornus). 
