! 
THE AUSTRALIAN NATURALIST. 293 
we unburdened our souls, and pulled up our socks, liter- 
ally, for the climb out of the river. The blazing was ulti- 
mately found, and we entered upon the trail, weary and 
anxious, for the country had been burnt out, and the pros- 
pect of a camp without shelter, water, or food was not 
inviting, and would have been an excellent opportunity 
to test Mark Tapley’s optimistic theories. What a long, 
dreary tramp that was, and what a relief to reach a well- 
‘defined track in the gloom, for the sun had set before we 
were through. Then the exquisite pleasure of sitting on the 
earth with your pipe drawing free, and the ‘‘black dog’”’ 
east off your back, unthinking and oblivious to everything 
save the glow of your pipe—moments of bliss that follow 
effort. We had opened up communication with the Nepean 
from Hill Top, located the Blazed Trail, and naught else 
mattered. 
REVIEWS. 
‘The Biology of Dragonflies,’ by R. J. Tillyard, 
MA; BSc, EVES. 
Many of our members who have the privilege of know- 
ing Mr. Tillyard will join with us in congratulating him 
on the publication of his book, ‘‘The Biology of Dragon- 
flies.’ The book is issued by the Cambridge University 
press, and although its publication has been long delayed 
through the war, it has not suffered in any other way, and 
its whole appearance reflects the greatest credit both on 
the author and the publishers. 
The book has a special interest to the Naturalists’ So- 
ciety, for much of the material was collected within the 
State of New South Wales during the last ten years. The 
problem of correlating the Australian dragonflies with 
their nearest relatives in other parts of the world has 
proved a fascinating one, and has inspired the author to 
carry out most varied researches on various difficult or 
obscure points in the biology of the dragonflies. Hyery 
chapter of the book bears the mark of the author’s own 
personality, and frequently of his own research; whilst 
the 188 figures are practically all original, and are re- 
markable alike for their distinctive clearness and their ac- 
curacy in detail, 
