xii LIST OF ILLUSTRATIONS 



TO FACE PAGE 



WHAT WAS ORIGINALLY FOREST LAND, THEN FOR MANY 

 YEARS A BEAVER POND OR LAKE, BECOMES A RICH 

 MEADOW, WHICH is ULTIMATELY DEVOTED TO THE 

 USE OF MAN ....... 149 



AN EXAMPLE OF A DIMINISHING LAKE AND CORRE- 

 SPONDING INCREASE IN THE SIZE OF THE " BEAVER 

 MEADOW " 152 



A BEAVER POND WHICH MAY EVENTUALLY BECOME 



MEADOW LAND 153 



A FRESH BEAVER-CUT STUMP SHOWING THE KEEN 



CUTTING THROUGH THE HARD BIRCH . . .158 

 LODGE BUILT BY BEAVER IN THE WASHINGTON Zoo . 159 

 DAM BUILT BY BEAVER IN THE WASHINGTON Zoo . 159 



THE OUTCAST . ^-1 ' 162 



A ROUGH EXAMPLE OF BEAVER LODGE IN WHICH VERY 



LITTLE SOD OR MUD HAS AS YET BEEN USED . 163 



TYPE OF LODGE BUILT ON AN ISLAND . . .163 

 REPAIRING A BROKEN DAM 166 



A SUBSIDIARY OR SECONDARY DAM BUILT TO SUPPORT 

 THE MAIN STRUCTURE, WHICH MAY BE SEEN ON 

 THE MIDDLE AND RIGHT SIDE OF THE UPPER PART 

 OF THE PICTURE . . . . . .167 



A FINE EXAMPLE OF A WOODLAND DAM, 365 FEET IN 

 LENGTH, OF WHICH ABOUT 70 FEET WAS OVER 

 7 FEET HIGH . -'.-< ^ *;- : r ,; . . 174 



IN SPITE OF THE TIMIDITY OF BEAVER THEY SOME- 

 TIMES SELECT CURIOUSLY PUBLIC PLACES FOR 



THEIR SCENE OF OPERATIONS .... 175 

 BEAVERS' ATTEMPT TO IMPROVE ON MAN'S WORK . 175 



