National Geographic : 1931 Jan
Photograph byCapt. A.W.Stevens EQUATORIAL FORESTS VIBRATE BY NIGHT FROM THE RHYTHMIC CLANGOR OF CROAKING FROGS AND SINGING BUGS An ocean of foliage prodigal with natural wealth-vast, green, and impenetrable except by streams and rivers-such istheinfinite, unconquered forest of Brazil. All its trees ever cut by man are but as so many straws plucked from the wheatfields of the Dakotas. Ajungle delta inMaranhao.