U. S. DEPAR r.MK.XT OF AG&ICULT1 



BUREAU OF CHEMISTRY BULLETIN NO. 74. 



TIIK IM ; IJ i:\ri; or SOIL AND CLIMATK 





COMPOSITION OK TIIK SI CAR I'.KKT. I'.NM 



BY 



HARVKY \V. \VII,KY. 



(II IKK <IK BUREAU,; 



X rOJ.LAHOKATlON WITH TIIK \V !: \TI I I III ClKKAl AND Till: A i , I: K I I . I I I: \ I 



Iv\ I -1:1: 1 \n:\ T Si LTIQN8 OF I MM \N \. l<>\v \. K i:\ii <K ^ . M ten i<- \ \, 

 Ni:\\ ^'(ll;K, CIAII, \'II:I;I\IA. \ \i> \\' IM D.\-<I \. 



WASHINGTON: 



GOVERN -M K N T l^f: I NH'.FtftiT^E 1 1 

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