01144cam a22002177a 4500 e 09000670 DLC 20260227111150.0 970206s1908 mnuae 000 0 eng e 09000670 DLC DLC LB3241 .M62 Minnesota. Department of Education. Heating and ventilation of small school houses. May 1908. Department of public instruction, state of Minnesota. [St. Paul? 1908] 19 p. incl. plans, diagrs. 22 cm. Bulletin no. 15 Heating and ventilation of small school houses [by J.W. Olsen]--How to install a heating and ventilation system in a one-room building by means of a stove.--How to install a heating and ventilation system in a one-room building by means of a furnace.--Plan of heating and ventilation system in a one-room school house designed by Joseph A. Moore.--How to make anemometer tests, by J.A. Moore.--Suggested form of report on heating and ventilation.--Desirable conditions.--List of books on heating and ventilation. Heating. Ventilation. 18797 18797