192 The Queensland Naturalist, Vol. L. 
fruit, etc. — that are passed in review, and are all photo- 
graphic representations ; a special feature being the clear 
portrayal of suitably prepared ‘‘ mounts ” by natural 
colour photography. Again, not only is a full and exact 
description given of the characteristic features that the 
dilferent structures and essential organs present, but allusion 
is also made to their physiological significance. And 
further, the origin, mode of occurrence, and physical and 
chemical properties of the various products that our pines 
are capable of yielding, as well as their quantative estima- 
tion, is made the subject of special treatment and discussion. 
Thus we find no less than 12 pages devoted to the gum- 
resin exudate of our ordinary White Pine. Passing over 
interesting discoveries relating to morphology, allusion 
must be made to the following important discoveries that 
are announced and have received extended treatment : — 
Guaiol in the timbers of Callitris species ; the tanning value 
of their barks : their sandarac resins : a manganese com- 
pound of general occurrence in Australian Coniferee : pinene 
— “ commercial oil of turpentine,” in the Kauri Pine. And,, 
as bestowing added value to the scientific and economic 
disclosures of ‘‘ A Research on the Pines of Australia,” 
may be mentioned, the full statement of the methods through 
the adoption of which these have been brought about, 
a feature that the student and savant alike will fully appre- 
ciate. — (H.T.). 
DONATIONS TO THE LIBRARY. 
The following donations to the Library have been 
received since the last issue ; — From Field Naturalists’ 
Club of Victoria, The Victorian Naturalist, for Novem- 
ber and December. From Tasmanian Field Naturalists’ 
Club, The Tasinanian Naturalist, October, and Report of 
Easter Camp-Out, 1910. From the Editor, Knowledge, 
for October, November and December. From Queens- 
land Geological Survey, Report on certain Mines and 
Mineral Fields in North Queensland, by L. C. Ball ; Field 
Notes on Mount Flora Gold and Mineral Fields, by L. C. Ball ; 
Some Mineral Fields in the Hinterland of Mackay, by L. C. 
Ball ; Sketch Maj} of East Central Queensland. From Queens- 
land Museum, Annals Nos. 1 to 4 and 6 to 9. From Gov- 
ermrient Botanist, Brisbane, Miscellaneous Reprints. From 
Government Botanist, Sydney, A Critical Revision of the 
Genus Eucalyptus, Parts 1 to 12, and Miscellaneous Re- 
prints. From Government Botanist, Melbourne, Plants 
Indigenous to Victoria, Vol. II., and Miscellaneous Reprints. 
From Government Entomologist, Sydney, Miscellaneous 
