Rejterence to Woodcuts.—F ig. 1. The Single Retort Boiler, to heat 1000 feet of 4-inch pipe. Fig. 2 shows how Fig. 1 should be set. 
section on A B. h ig. 3. The Triple Retort Boiler, to heat 4001) feet of 4-inch pipe. Fig. 4 shows "how Fig. 3 should be set for radiating 
" at lrom the boiler direct. If placed where that is not required fix as Fig. 2 is shown. 
' " - - -- * 1 ■ - - __ _ _ 
^98 THE COTTAGE GARDENER AND COUNTRY GENTLEMAN’S COMPANION, August 11, 1857. 
IMPLEMENTS AND OTHER CONSTRUCTIONS SUITED FOR GARDENS. 
Exhibited at the Horticultural Society’s Show at Chiswick. 
(Continued from page 253.) 
Messrs. A. Shanks and Son, Arbroath, exhibited the following:— 
does without any shifting of rollers. The machine is 
compact and durable, and gives great satisfaction both as 
Patent Mowing and Rolling Machine for Hand 
Power. —This machine, from the introduction of a swivel in 
the front or guiding pulley, is admirably fitted for mowing in 
intricate places, around flower-beds, verges, &c., which it 
regards the ease with which it can be "worked and managed, 
and the superior style in which the work is executed. 
Thomson’s Retort Boiler. —This new form of boiler I gardener, Dalkeith Park, Dalkeith. Messrs. Shanks state 
for heating by hot water was designed by Mr. Thomson, J that the following are some of the advantages afforded by 
Fig. 2. 
Fig. 3. 
Fig. 4. 
