362 H. W. Turpin 
TABLE 9. Carson DioxipE (PER CENT BY VOLUME) IN CROPPED AND IN UNCROPPED 
Sor. or Low Initrat Carson-Dioxipe Content (Muiizet, 1918) 
Tem- Atmos- Carbon dioxide produced in 
Date perature pheric Difference 
of sampling] (centi- pressure |_—AANNAN (I—II) 
grade) (inches) oad soil Uncropped soil : 
I 
July26n52- 17.0° 28 -99 0.210+ .002 0.215+ .002 —0.005+ .003 
July 11 Pilon 29.12 0.283+.001 0.295+ .007 —0.012+ .007 
JulySeee 19.0° 29.12 0.358+ .001 0.333+ .004 +0 .025+ .004 
July alte 30.0° | _ 28.94 0.578+ .001 0.578+ .001 0.000 .016 
ul ye 22 eos 23 .0° 29.31 0.795+ .014 0.750+ .021 +0 .045+ .028 
ulyae2 pie 30.0° 29.22 0.908 .059 0.895+ .017 +0.013+ .061 
July 29.... DAR OZ 29 .14 1.008+ .054 0.920+ .021 +0 .088+ .058 
August: 1... 20 .0° 29 .07 0.798+ .039 0..580+ .029 +0.218+ .049 
August 5... 210 28 .92 0.750+ .052 0.375+ .017 +0.375+ .055 
August 8... 35 .6° 29 .03 1.628 .161 0.920+ .036 +0.708+ .170 
August 12.. Zane 29.16 1.223+ .018 0.665+ .012 +0. 558+ .022 
August 14.. 28 .0° 29 .07 1.710+ .043 0.790+ .026 +0 .920+ .050 
August 15.. 31.0° 29.21 1.405+ .012 0.525+ .02 +0.880+ .024 
August 16.. 32.0° 29.16 1.480+ .033 0.505+ .021 +0.975+ .039 
August 17.. 29 .5° 29.50 1.683+ .049 0.478+ .023 +1.205+ .054 
August 19.. 26RD r s| <2 29RDS 1.683+ .042 0.400+ .014 +1.283+ .004 
August 21.. 33.0% 29.21 1.948+ .016 0.430+ .010 +1.518+ .019 
August 22.. 33.0° 29.17 2.655+ .055 0.588+ .018 +2.067+ .058 
August 23.. 33.0° 29.10 2.715+ .074 0.633+ .014 +2.082+ .075 
August 24.. 34.0° 29 .02 2.690+ .060 0.695+ .007 +1.995+ .060 
August 26.. 30.5° 28 .96 2.275+ .064 0.468+ .006 +1.807+ .064 
Memoir 29, The Lecithin Content of Butter and Its Possible Relationship to the Fishy Flavor, the third pre- 
ceding number in this series of publications, was mailed on December 23, 1919. 
