INSTITUTO OSWALDO CRUZ 
CAIXA POSTAL 926 
auw 
BRASIL — RIO DE JANEIRO 
frequented the borders of the Larsh earlier in the day. 
Tiny truefrogs living on the bushes that grew up out of 
the water had voices that sounded like the winding up 
of ten thousand tiny watches. The querulous cry of one 
of the less musical species rang out from time to time> 
and tlie trilling, bird-like call of one of the toad species 
frequently came from the shore. 
The v/onder Book of nature always repays the student 
for hB efforts by a thousand unsuspected facts of the most 
striking interest, as v/ell as with visions of unforgettable 
loveliness for all who care to see them. 
Look around you v/hen you go into the forests or 
the open country, and the sheen of a blue butterfly’s wing, 
in the instantaneous flash of a huiaraing bird, in the glimpse 
of a orchid shining like a purple star from the gray gloom 
of tree-trunks- in one of these or in other experiences just 
as vtfonderful and breath-taking, you will find the soul of 
the tropics and the truest fascination of Brazil. 
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Typ. do Institute Oswaldo Cru? 
