FIFTEENTH ANNUAL YEAR BOOK— PART X 721 



tachable. The removable fenders can be so cut as to fit in place upon the end 

 fenders, which are securely spiked in place, and held firmly thus with an easily 

 withdrawn bolt or spike. 



7. VENTILATORS. 



A satisfactory scheme of ventilation is provided by leaving an opening of 

 moderate size beneath the ridge pole, protected by nailing a wide triangular 

 board under and flush with the edge of the extending roof boards. The wind is 

 prevented by this arrangement from sweeping through the house. A large ven- 

 tilator may be provided throughout the length of the entire ridge by leaving an 

 opening of two inches or so, protecting same with a false comb. Sometimes the 

 smaller movable houses need a maximum of ventilation to insure dryness and 

 fresh air, hence this suggestion. However, the use of the extended ridge venti- 

 lator necessitates that the roof doors be cut short at the top so as to easily 

 clear the false protective comb. 



8. PAINTING. 



Not only will the expense in painting the wooden movable house prove a 

 good investment in prolonging the life of the building, but it adds sufficiently to 

 the appearance of the house to justify the expenditure. Any good outside paint 

 will be satisfactory, but two coats should be given to insure that the wood be 

 thoroughly covered. 



Some successful swine raisers practice the spraying of their hog houses, both 

 inside and outside, with creosote oil or other similar preservative liquid. These 

 liquids not only preserve the wood, but also act as disinfectants ; they help 

 especially in the eradication of lice and mange. Creosote oil stains the wood 

 black and sometimes makes it streaked, thus possibly making Its use objection- 

 able from the standpoint of appearance. 



THE AMES COMBINATION ROOF HOUSE. 



The combination roof hog house (see figures 9, 10, 11, 12 and 13) is built 

 with doors in the roof so as to provide a maximum of direct sunlight. The 

 walls are higher than those of the Iowa gable roof type house. The higher the 

 walls the more building material is required, hence the more expensive the 

 house. However, there is more room in such a house for an attendant. 



The drawings and figures indicate clearly the arrangement of doors and gen- 

 eral details. The materials and construction details are similar to those of the 

 Iowa gabla roof house. 



THE "A" HOUSE (DOORS HINGED AT SIDE). 



The "A" house is a simple structure (see figures 14, 15, 16, 17, 18, 19, 20, 

 and 21), which can be easily and quickly erected. The "A" type has proven to 

 be very satisfactory ; it is strongly recommended by a vast number of practical 

 swine men. 



The slope of the roof is such as to obviate the necessity for protective in- 

 terior fenders along the sides ; they are needed across the end. 



The specifications submitted call for a very substantial frame with a two- 

 inch floor. A lighter frame may be used if one wishes to reduce the cost. The 

 substantial construction is much more durable and satisfactory, and it is to be 

 recommended. 



The dimensions of the "A" house may vary considerably. The detailed plans 

 (see figures 16. 17 and IS) show a house 6'xS' in floor size with the ridge a 

 little over 6' from the floor. "With this style of house if the peak is made 

 lower than 6' it will be necessary to use a swinging door hinged at the top be- 

 cause the lower house will not permit the sliding door to be raised high enough. 

 The Economy house (see figures 32, 33,- 34 and 3.5) is built with a 5'x7' floor 

 size, with the ridge 5' from the ground. This is also a satisfactory size but it 

 is to be remembered that the Economy house as presented is doorless. In choos- 

 ing a certain dimension one must flgure closely, among other things, on the size 

 of house which will insure that the lumber entering into the construction there- 

 of shall be cut with a minimum of waste. 

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