304 R. T. BAKER AND H. G. SMITH. 
Mannite possesses similar laxative properties to that of manna, 
and is frequently employed on that account in Italy.’ 
We advance no theory as to the origin of this manna, as that 
lies in the province of the entomologist, but Mr. W. W. Froggatt 
is of the opinion that it is due to some action of a homopterous 
insect on the stem of the grass. 
BrstiogRAPHY OF EucaLyptus Mannas AND Lerp.? 
Allen (A. H.)—Commercial Organic Analysis (J. and A. Church- 
hill), Vol. 1., (1885) p. 191, Glucoses (Eucalyptose, Eucalyn); 
p- 192, Saccharoses (Melitose, Eucalypton ; Melezitose). 
Anderson (T.)—On a new kind of manna from New South Wales. 
Edin. New Philosoph. Journ., July, 1849. Reprinted in 
Papers and Proc. R. 8., V. D. Land, Vol. 1, 1851. 
This gives an account of lerp received from the north- 
western part of Victoria which he analysed. 
Ueber eine neue Mannasorte aus Neu Siid Wales. (Vom 
Verfasser mitgetheilt). Journ. fiir prakt. Chemie., 
XLvil., 449. A translation of the preceding. 
Berthelot (M.)—Sur quelques matidres sucrées. Compt. Rend., 
XLL, 392 (1855). Examination of an Australian manna 
received from the Paris Exhibition of 1855. The author 
examines the Melitose of Johnston (see p. 42), and from it 
obtains an unfermentable sugar called Eucalin (Eucalyn). 
The manna examined by Berthelot was probably that 
exhibited by Mrs. (afterwards Lady) John Hay, then of 
Welaregong, Upper Murray, and was probably obtained 
from Eucalyptus Gunnii. 
Sur quelques matidres sucrées, N. Ann. Chim. Phys., 46, 66. 
A copy of the preceding. 
Ueber einige zuckerartige Substanzen. Journ. fiir prakt. 
chem., 67, 230. 
1 Bentley and Turner, Med. Plants, Vol. 111., p. 170. 
2 From J. H. Maiden’s Bibliography of Australian Economic Botany. 
