26 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 8l 



Interesting and important questions concerning the comfort and 

 welfare of children in classrooms are inadequately answered today. 

 It is hoped that this report may in some degree help towards a better 

 understanding of these problems. 



NOTES ON TABLES 



Temperatures are given in centigrade degrees. 



Air velocities are in feet per minute. 



Surface areas are determined from Du Bois' height-weight chart 

 (Archives of Internal Medicine, Vol. 17, p. 865, 1916). 



Basal metabolism values are taken from Du Bois' " Basal Metab- 

 olism in Health and Disease," edition 1927, p. 145. 



In table E, Wall A, B, C, D, E, refer to definite places on the 

 canton-flannel curtains hung around the subject and forming the 

 walls to which the subject is radiating. Places A, B, and D are on the 

 sides, C on the ceiling and E on the floor. Position numbers followed 

 by an asterisk are taken on the skin because of short sleeves or low 

 socks. 



In table E also, skin temperatures in the three columns on the 

 right are just as read from the thermoelement device. In the sum- 

 mary on the left they have been corrected to the melikeron scale by 

 the additfon of i°i as explained in the text. 



