176 BOARD OF AGRICULTURE. [P.D.No.4. 



If there is plenty of window space in the barn, this can be made 

 to furnish excellent ventilation. The Sherringham window is good; 

 this is simply a triangular piece of metal or wood placed at the side 

 of the window so that it can be dropped out at the top and the 

 air be deflected toward the ceiling instead of striking directly on 

 the cattle. The Sherringham window, Avith double-glazed sash and 

 casing comj^lete can be purchased from some of the dairy supply 

 houses. The removal of the windows and the substitution of cloth 

 has sometimes been recommended; this does not give good results 

 for the reason that the air of the cow stable contains a good deal of 

 moisture and some dust, and the meshes of the cloth very soon be- 

 come stopped up, so that air does not pass through readily. It is 

 undoubtedly a good method for the sick room. 



In conclusion, the writer would urge any one who is planning to 

 build or rebuild a dairy barn (1) to visit as many other barns as 

 he can; (2) to allow for expansion of the business; and (3) to draw 

 plans to scale a year before building operations are begun; the last 

 will save expense, as it is easier to correct mistakes made on paper 

 than those made with actual building materials. In the study of the 

 problem, the following iDublications may be of service : — 



The Farmstead, by Eoberts, publisher, Macmillan Company. 



Farm Buildings, Sanders Publishing Company. 



Physics of Agriculture, by King, published by the author, Madison, Wis. 



Ventilation, by King, published by the author. 



Bulletin 143, Economy of the Eound Dairy Barn, Illinois Experiment 



Station, Urbana, 111. 

 Bulletin 250, College Farm Buildings, Michigan Agricultural Experiment 



Station, Lansing, Mich. 

 Bulletin 164, The King System of Ventilation, Wisconsin Agricultural 



Experiment Station, Madison, Wis. 

 Circular 131, Designs for Dairy Buildings, Bureau of Animal Industry, 



United States Department of Agriculture, Washington, D. C. 



