By Joseph Sabine, Esq. 89 



drives into the house through the open space at the bottom 

 of the panes. 



Another mode of glazing is mentioned by Mr. Go wen, in 

 his Paper; he calls it Shield Glazing. This answers equally 

 as well, but it is not superior to the circular glazing. It is 

 a patent invention, and a very neat specimen of the work is 

 exhibited in a house erected by the Patentee at the Union 

 Nursery in the King's Road, near Chelsea. The panes are 

 cut diagonally in straight lines, towards the centre * In the 

 neighbourhood of Birmingham several houses have been 

 constructed upon this plan. 



These four methods of glazing are represented in the an- 

 nexed Plate. From the preceding observations, the respective 

 merits and defects of each will be so obvious, that it is not 

 necessary to enter into a comparison of them. Persons con- 

 structing houses may judge for themselves in the selection; 

 but it seems to be clearly ascertained, that a wide lap is the 

 cause of the breakage which too often occurs, and by which 

 the expense of glazed houses is so heavily increased. 



The putty between the laps is subject to be much and 

 frequently out of order. If, however, Mr. Gowen's direc- 

 tions for painting the surface of the glass in the rabbets could 

 be extended to the laps, and a narrow line of paint be laid 

 over the parts which embrace the putty, its adhesion would 

 be much more effective : the paint would adhere to the glass, 

 and the putty to the paint. 



A substitute for putty was invented, and a patent obtained 

 for it, by Mr. Stewart, late gardener to John Julius 

 Angerstein, Esq. of Blackheath ; it is called the Copper 



* See Tlatc III, Figure 4. 



