900 Index. 



Page. 



Tree trunks, effect of temperature changes on 282, 291 



splitting by cold 283 



Trumansburg orchard, study of crown-rot in 259 



Tuck, Andrew, potato-spraying experiment by 238 



Typhtocyba comes (See Grape leaf -hopper) . 



Typhiocyba tricincta, notes on occurrence 373 



V. 



Vacuum changes, effect on milk flow 73 



Van Slyke, L. L., bulletin by 309 



Volunteer potato-spraying experiments, summary 247 



W. 



Weather records for 1912 875 



Weed seeds found in alfalfa seed 182, 189 



alsike clover seed 184 



red clover seed 183 



timothy seed 185 



Weeds, new, in alfalfa seeds 190 



Weedsport orchard, study of crown-rot in 265, 293 



WeUington, Richard, bulletins by 423, 443 



Wheat bran, organic phosphoric acid compound in 151 



phosphorus-bearing salts in 158, 161 



preparation of phosphorus compound from 157 



Wilson, James K., resignation as Assistant Bacteriologist 8 



T. B., letter of transmittal iv 



Wind as a cause of crown-rot 301 



Y. 



Yields increased by crossing 425 



Yponomeuta maiinellus (See Ermine moths). 



Yponomeuta muliipunclellus, a native ermine moth 408 



Yponomeuta padellus (See Ermine moths). 



