122 Taylor and Martineau's Apparatus 



occupy, for situations where room cannot be spared to much 

 extent. 



One which is capable of furnishing gas for from 12 to 20 

 argand lights, may be conveniently placed in such a fire-place 

 as is usually found in back kitchens, and will occupy a space 

 only of about 3 feet square, or more conveniently of 4 feet by 

 3, and will require a height of about 8 feet. 



The large apparatus shewn in the plate measures in front 10 

 feet, and in depth 6 feet, and is also about 8 feet high. 



The intermediate sizes are made up by adopting either one 

 stove of the large or smaller sizes to its proper feeding and 

 washing apparatus ; or by fixing two stoves, of such dimensions 

 as may be required to a common feeding apparatus, as shewn 

 in the plate. 



The latter plan is the best, as it is a security against any dis- 

 appointment, for as the stoves may thus be worked either singly 

 or together, it gives the power of cleaning or putting the one in 

 order, without any hinderance to the process. 



The space mentioned as occupied by this gas apparatus is, 

 of course, independent of that necessary for the gazometer, or 

 reservoir of gas, which is variable according to the consumption 

 required. 



For private houses, a gazometer should hardly contain less 

 than from 80 to 100 cube feet, and for mansions and larger 

 establishments they should hold from 300 to 600 cube feet. 

 There are great advantages in having tlie gazometer as large as 

 circumstances will admit ; in the first place, the demand of the 

 longest night in winter should be provided for, and the increased 

 consumption occasioned by lighting the greatest number of 

 rooms for company. In the second place, both the trouble and 

 expense of the gas is diminished by having a reservoir suffi- 

 ciently capacious to hold some days' ordinary consumption, by 

 which, as the gas improves by keeping, it is most convenient and 

 economical to have to make it but occasionally, as, for instance, 

 once or twice in the week. 



In a moderate private house, where three or four rooms are 

 adequately lighted, and where a small flame is kept burning all 



