...I shall have grass walls, and grass and reeds on thefloor of my own house; the free ventilation will keep it sweet... 
David Livingstone 「The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II (of 2), 1869-1873」
...Additional ventilation is secured from the doors...
Harry M. Lamon 「Ducks and Geese」
...Plenty of ventilation is required inthe brooder house in order to take out the ammoniaodor which arises from the droppings...
Harry M. Lamon 「Ducks and Geese」
...Properlymanaged, the doors and windows provide sufficientmeans of ventilation but some duck growers preferto have roof ventilators in addition...
Harry M. Lamon 「Ducks and Geese」
...In all cases, however, thorough ventilation should be provided,for of the two evils of exposure to cold or too greatprivation of air, the former is to be preferred...
Richard L. Allen 「Domestic Animals」
...In all cases, however, thorough ventilation should be provided; for ofthe two evils, of exposure to cold or of too great privation of air, theformer is to be preferred...
Robert Jennings 「Sheep, Swine, and Poultry」
...Good ventilation is also important; for it is idle toexpect animals to make good flesh and retain their health, unless theyhave a sufficiency of pure air...
Robert Jennings 「Sheep, Swine, and Poultry」
...Be sure that they have ventilation, evenin the winter...
A. C. Smith 「The Raising and Care of Guinea Pigs」
...Use a light but strong box; in the summer haveplenty of ventilation...
A. C. Smith 「The Raising and Care of Guinea Pigs」
... In this house the part of the rear wall above the roostplatform is made to open wide, thus affording perfect ventilation insummer...
John H. Robinson 「Our Domestic Birds」
...Attend well to the ventilation, and more especially to disinfection...
Gordon Stables 「The Domestic Cat」
...The avoidance of all contact of the cattle-tenders withinfected beasts is especially enjoined, and ventilation and cleanlinessof the stalls strongly recommended...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
...A good many breeders are now using stout muslin instead of glass in thewindows, as this gives light, lets the warmth of the sun enter the roomsand provides a good system of ventilation...
Carl Dare 「Profitable Squab Breeding」
...Seeto it that the ventilation is attended to...
Carl Dare 「Profitable Squab Breeding」
...They must consider the ventilation ofthese dwellings, and these, too, must be strong and substantial...
Maurice Maeterlinck 「The Children's Life of the Bee」
...Tincanisters, or, indeed, anything made entirely of metal, unlessplenty of ventilation is afforded, as in Fig...
Montagu Browne 「Practical Taxidermy」
...The walls are extremely strong and are supplied with windows for ventilation, and with doors to enable the Termites to render their services...
Frédéric Houssay 「The Industries of Animals」
...Aslatted blind window is in eachgable, for ventilation, and a door, 9×6 feet, on the yard side...
Lewis Falley Allen 「Rural Architecture」
...This allows of ventilation between thetwo windows, in summer, which would be cut off, were the partitioncarried all the wayup...
Lewis Falley Allen 「Rural Architecture」
...The only ventilation wasthrough small holes in the door...
Roman Frederick Starzl 「The Martian Cabal」
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