lf'l'"'l Michael, ct al.: Ilijdrograiiliie Records of Hcrijips InfsiitKtioii 125 



EXPLANATION OF TABLE 3 

 In the fall of 1908 a Pox apparatus (see Fox, 1905) for deter- 

 miniHg the gaseous content of sea water was procured and, in 1911, 

 Mr. H. C. Burbridge succeeded in measuring the carbon dioxide, 

 nitrogen, and oxygen dissolved in a selected serias of samples. How- 

 ever, considerable difficulty was experienced mainly because (if the 

 absence of a supply of gas for fuel, and, as it is almost necessary both 

 for operating and repairing the apparatus, the systematic analysis of 

 gas content was not undertaken. "While the few results obtained are 

 tabulated, as usual, to the nearest 0.01 e.c, the condition under which 

 the analyses were made was so unsatisfactory that the error is probably 

 greater than this would indicate. 



First column. — Water sample numbers entered in chronological order; for 

 information relative to date, time, latitude, longitude, temperature i(i situ, 

 specific gravity, and salinity refer to the same water sample numbers entered 

 in Table 1. 



Second column. — Depth from which the sample was collected entered to the 

 nearest meter. 



Third column. — Amount of carbon dioxide per kilogram of the sample 

 measured in cubic centimeters at 0° C. under 760 millimeters pressure. 



Fourth column. — Amount of nitrogen per kilogram of the sample measured 

 as stated above. 



Fifth column. — Amount of oxygen per kilogram of the sample measured as 

 stated above. 



Table 3. — Gas Content 



