From his pockets Woglom now produced a number of implements.
Against the window pane he pressed a bit of a sticky substance resembling putty, and then sunk the head of a tool he did not wish to use in the stuff.
This done, he made use of a glazier's point.
He made a circular cut on the pane, the putty forming the central point or axis.
Now he tapped gently on the cut glass with an iron chisel, whose head was covered by a piece of felt cloth to deaden the sound.
Presently the cut portion gave way.
Now the use of the putty became apparent. It was to prevent the cut-out part of the glass from falling and shattering on the floor inside.
The ingenuity, the great care, the art with which burglars work is a revelation to those who have no knowledge of the methods by which such startling robberies are made possible.
The circular piece of glass was brought to the outside and laid carefully down.
Through the aperture thus formed a hand could be inserted, and the buttons turned about, when the window could be easily opened, permitting ingress to the cellar.