. Bird-lore . ONE OF THE CEMEXT-BLOCK NEST-BOXES IN THEWALLS OF THE CASTLE; HERR FRIEDERICH SCHWABE, INCHARGE OF THE SCHOOL OF BIRD PROTECTION, STAND-ING NEAR IT. 0 r V 11 ^4 FRONTVIEW SIVI DEEW Some Observations on Bird Protection in Germany 333 inserting the finger in the latter, and the contents of the interior be thusexposed to \-iew. In the upper stories of the castle, where the walls consistof a single thickness only of wood, entrance-holes of the proper size have beenbored in the walls, and the ordinar>^ type of nest-box hung on a nail inside,after the upper front of the box has been
. Bird-lore . ONE OF THE CEMEXT-BLOCK NEST-BOXES IN THEWALLS OF THE CASTLE; HERR FRIEDERICH SCHWABE, INCHARGE OF THE SCHOOL OF BIRD PROTECTION, STAND-ING NEAR IT. 0 r V 11 ^4 FRONTVIEW SIVI DEEW Some Observations on Bird Protection in Germany 333 inserting the finger in the latter, and the contents of the interior be thusexposed to \-iew. In the upper stories of the castle, where the walls consistof a single thickness only of wood, entrance-holes of the proper size have beenbored in the walls, and the ordinar>^ type of nest-box hung on a nail inside,after the upper front of the box has been sawed offdiagonally, thus:. FRONT MEW SIDE VIEW
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Keywords: ., boo, bookcentury1800, bookdecade1890, booksubjectbirdsperiodicals
