1128 THE GARDENERS CHRONICLE AND AGRICULTURAL GAZETTE,  [Decemser 22, 1860. 
disappeared. Column 6 gives the mean temperature of | at the gables. The house is ventilated by m 
ioe al TERRES . eal Ae. 4 hol 
h eans of the | length of the house are thrown open simultaneously, 
the air for f the front lights opening 2 feet 6 inches; they a l set t any distance noj ding 20 » Which 
ee ne wus KAN: CONANA gives the mean | are hung on , about 8 inches from the top, and | is the height of the movement rod from the bottom 
temperature of the air for the 
pivo r 
number of days or hours | open at three lifts, consequently one-third of the whole 
intervening between the registering of the ther- | length of the house is moved at one lift 3 each lift has 
mometers. | a movement rod of 14 inch round iron, which runs ag ye 
i i 7, h the mullions between the front lights, | 44 : 
ie ted nage Peta been sence me rie pine aie erg tari from the top of the light, eath light length of each ridge. When lifted to the full ext 
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| plate, the air passing under and over the light 
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ventila f the spans. } 
has an open ridge, on which the o enings are 
ent 
— being connected to the movement rod by means of a | an opening on each side 3 inches wide is left. In the 
ARREA Eea i f curved stay with two joints in it, one end of which is | opening of each ridge are five brackets, to which hinges 
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B) 8 "Es & Se ge & = end there is'a socket through which the t rod hed ge cap, anc principle of 
i Sa ee E S: gS = passes, and it is secured to the rod with a key wedge; | a parallel ruler. The top hinge of each ridge is con- 
; pr each lift is effected by means of a lever 20 inches long, | nected to 14 inch movement rod by a curved stay with 
ki H jJointsin it. simi E p, Lof, ret 
COC acces area eee which has a set screw and staple g j if o gls. 
TRAFNE aee circular bar, by which means the lights one-third the! On the back wall of the house is fixed, 3 feet 
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“RIDGE AND FURROW VINERY AT 
RENTHAM. 
Tuis house, which was erected in 1858, was designed 
by Mr. Fleming, of Trentham, and built by Mr. Smith, 
of Hanford, Stafordshire. Its length is 140 feet, and 
its width 18 feet inside the walls. The roof is, as will 
seen, ridge and furrow in 26 spans; the ridge and 
furrows run transverse on the rake at an angle of 21°. 
high from the path, a brace and screw lifting appa- | bottom end of the liftin 
ratus in a frame. The nut of the screw has 
horns which are made to work in slides inside the | whi 
f ; to these horns are attached the jaw at the | 1.1 
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for lifting to; lights and ridge caps. | Columns, arch ribs, tie rods, front lights and p Pe 
ri } h + £ TapE -3 rN sia E TE ; p, 41045 rat a ee oo F ee 
house. Three of these apparatuses are used for raising top ends of the open ridges are suspended, and under- | The full extent it will open is 20 inches. It lifts in 
the ridge caps. ‘ neath each of the furrows is filled in with a | sheets the third of the length of the house, with curved 
The top ends of the ridge and furrow roofs terminate | gusset light, similar to one of the gable lights, inverted. stays, movement rod a race and screw lifting 
about 2 feet 2 inches from the back wall; a hanging | On the top of this hanging rail la; the bottoni rail of | ap saratus, fixed in the back wall, similar to those already 
rail runs horizontally the length of the house, against | the light, which terminates un ullions between the 
der the coping. Thisligh’ | described. The m front upright 
