OF HOUSE OF COMMONS 



89 



sitting. The air as it entered the House contained 2 '6 bacteria and 

 moulds per litre. 



A third series of examinations was made by Graham Smith of 

 the air in certain committee rooms, etc., as follows : 



Separate investigation as to the degree of C0 2 present in the 

 Debating Chamber of the House of Commons revealed between 3-4 

 parts per 10,000. 



Dr Graham Smith, as a result of his investigations, arrived at 

 the following conclusions : 



1. The number of micro-organisms in the open space surrounding 

 the House of Parliament is comparatively small (4*2 per litre). 



