Vol. XIII IVTAY 13. 1918 No. 7 



JOURNAL OF 



AGRICULTURAL 

 RESEARCH 



CONTENTS 



Chemistry of the Cotton Plant, with Special Reference to 

 Upland Cotton - - -- • -- • 345 



ARHO VIEHOEVER, LEWIS H. CHKRNOPF 

 aad CARL O. JOHNS 



( Contribotion tiom Horean of Chemistry ) 



Stability of Olive Oil - 353 



E. B. HOLLAND, J. C. REED 

 and J. P. BUCKLEY, Jr. 



< C«xrtrtbotion trom Ma8^sacbt;jMtt8 Apjenltnnt^ Eip«riiB«nt Station > 



Some Bacterial Diseases of Lettuce _ - _ , 3^7 



NELLIE A. BROWN 



( C«tUritK!{lo9 (r«m Rar^u ol Plant Jaibetxfi 



PPflUSHED BY AUTH»RrrY OF THE SECRET.\RY OF AGBICCITURE. 



WITH THE COOPERATION OF THE ASSOCIATION OF AMERICAN 



AGRiaJlTlIR4L COUEGES AND EXPERIMENT STATIONS 



WA.SMINOXON, E>. C. 



•MAiHltt<iXi>H J 00tf't1«HIB»«T P(M?<T»I*9 0^«0C ! Ifilff 



