xi LIST OF ILLUSTRATIONS 
TO FACE PAGE 
WHAT WAS ORIGINALLY Forest LaND, THEN FOR MANY 
YEARS A BEAVER Ponp or LAKE, BECOMES A RICH 
MEADOW, WHICH IS ULTIMATELY DEVOTED TO THE 
UsE oF Man . . . . ‘ . ; 
An EXAMPLE OF A DIMINISHING LAKE AND CORRE- 
SPONDING INCREASE IN THE SIZE OF THE “‘ BEAVER 
Meapow ” 5 - A : ‘ : 
A Braver PoND WHICH MAY EVENTUALLY BECOME 
MEapow Lanp ° F : ‘ , 
A FRESH BEAVER-cUT STUMP SHOWING THE KEEN 
CuTTING THROUGH THE Harp Birc# . F F 
LODGE BUILT BY BEAVER IN THE WASHINGTON ZOO . 
Dam BUILT BY BEAVER IN THE WASHINGTON ZOO - 
THe Outcast . 3 i s 7 
A RouGH EXAMPLE OF BEAVER LODGE IN WHICH VERY 
LITTLE SoD oR MuD HAS AS YET BEEN USED . 
Tyre oF LODGE BUILT ON AN ISLAND . . 
REPAIRING A BRrokEN Dam. ‘ F 
A SUBSIDIARY OR SECONDARY DAM BUILT TO SUPPORT 
THE MaIN STRUCTURE, WHICH MAY BE SEEN ON 
THE MIDDLE AND Ricut SIDE OF THE UPPER Part 
OF THE PICTURE : : 2 
A. Fine EXAMPLE OF A WOODLAND Dam, 865 FEET IN 
LENGTH, OF WHICH ABOUT 70 FEET WAS OVER 
7 FEET HIGH . : , , 
In SPITE oF THE TIMIDITY OF BEAVER THEY SOME- 
TIMES SELECT CURIOUSLY PuBuLic PLACES FOR 
THEIR SCENE OF OPERATIONS . ‘ 
BEAvErS’ ATTEMPT TO IMPROVE ON Man’s WorkK 
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