Some time since, we noted that no one now thought of glazing with putty, and this has brought us an inquiry, what is the substitute?

For the outside of sashes we do not need any substitute. No putty is needed on the outside. It can be made so hard that it will not separate from the wood, but usually it does separate enough for a little water to get in. When frost follows and the water congeals the cleft is made wider, the putty becomes loose and water gets through. There is no house so leaky as one usually glazed with putty.

The modern practice is simply to bed the glass in putty, and some do not [even do this, but use a semi-fluid putty-like mixture which they inject into the crevices by means of an India-rubber putty-bulb, of one of which we give an illustration herewith.

Glazing Greenhouses 30

The glass is first fastened with triangular brads - glazier's sprigs they are called. These are simply cut out of tin. It is not easy to drive these without the expenditure of much time. To aid in this, an extremely useful invention is that of Messrs. H. W. Williams & Sons, of Batavia, Illinois, which the annexed cut represents. This has a special style of brad adapted to it, and which drives them in with great rapidity. It is one of the most useful inventions we have met with for a long time, and very much lessens the cost of glazing.

Diamond Point Driver for Glazing.

Diamond Point Driver for Glazing.

There are many new and improved methods of glazing without putty, and most of them very meritorious, but which usually require skilled labor to operate successfully. For the work which any one may do, we doubt whether there is anything more acceptable than Williams' putty bulb, and the Diamond Point Driver.