48 



Composition of the Atmosphere 



Again, in the winter of 1869 a large number of analyses were made of 

 air collected in both the congested portions and the open parts of the city 

 of Glasgow. The results are given in table 31. 



Table 31. Determinations made by Smith of oxygen in air from Glasgow. 



Place. 



Congested sections. 



Buchanan street, near Western Club 



Exchange, front of 



Union street 



Miller street, Argyle street 



Argyle street, near Queen street 



St. Enoch's Square 



Cross 



Blackboy Close, Gallowgate 



Gallowgate, between Kent street and bar- 

 racks 



A close, High street 



Armour street, near barracks 



Kirk street 



Coulter's lane, Abercromby street 



A small court, Tobago street 



Oswald street, Dalmarnock road 



Average 



Open sections. 



Tennant street, St. Rollox 



Charles street 



Middleton place : 



Castle street, near the cathedral 



Dobbies Loan, near poorhouse 



New City road, near Abercorn street 



Blythswood Square 



Renfrew street 



Newton Terrace, Sauchiehall street 



University, Gilmour Hill 



Quay, near Broomielaw Bridge 



Anderston quay 



Sharpe's lane, Stobcross street 



Finnieston quay 



Pointhouse pier 



Average 



Total average 



Oxygen. 



First 

 analysis. 



p. ct. 



20.92 

 20.89 

 20.88 

 20.90 

 20.96 

 20.92 

 20.90 

 20.90 



20.88 

 20.87 

 20.86 

 20.88 

 20.88 

 20.85 

 20.87 



20.90 

 20.92 

 20.94 

 20.92 

 20.93 

 20.91 

 20.94 

 20.90 

 20.95 

 20.88 

 20.95 

 20.90 

 20.98 

 20.90 

 20.98 



Second 

 analysis. 



p. ct. 



20.91 

 20.90 

 20.88 

 20.93 

 20.90 

 20.91 

 20.85 

 20.88 



20.87 

 20.86 

 20.88 

 20.87 

 20.88 

 20.90 

 20.89 



20.93 

 20.92 

 20.95 

 20.87 

 20.91 

 20.92 

 20.95 

 20.92 

 20.99 

 20.92 

 20.90 

 20.90 

 20.97 

 20.92 

 21.01 



Average. 



p. ct. 



20.915 

 20.895 

 20.880 

 20.915 

 20.930 

 20.915 

 20'.875 

 20.890 



20.875 

 20.865 

 20.870 

 20.875 

 20.880 

 20.875 

 20.880 



20.8890 



20.915 

 20.920 

 20.945 

 20.895 

 20.920 

 20.915 

 20.945 

 20.910 

 20.970 

 20.900 

 20.925 

 20.900 

 20.975 

 20.910 

 20.995 



20.9293 

 20.9092 



Smith also cites two analyses made of air collected by a friend in the 

 West Indies. In one taken on the North Atlantic, latitude 43 5' N., 

 longitude, 17 12' W., at a point 18 feet above water, at 2 h 30 m p. m. on a 

 fine day, he found 21.01, 21, and 20.97 per cent of oxygen, respectively, 

 the average being 20.99 per cent. In a sample taken at St. John's, An- 

 tigua, on April 11, 1865, at 9 a. m. on a showery morning, three analyses 

 of the same sample gave 20.96, 20.91, and 21 per cent, with an average of 

 20.95 per cent. Smith considers the difference between these two analy- 

 ses as significant, and discusses the possibility of an influence on races, 



