New YorkK AGRICULTURAL EXPERIMENT STATION. 347 
Greatest Maximum Horizontal 
depth. das length. 
n. 
Name. In. In. 
SHECDYLESCll Ck meaty ae ere scbiar tists are ants 27 12 9 
PAISIRC CCLOVCimmetn erenmee Vern oto Snee et, ce C2 28 12 9 
BIMOLA Ve CLASGE eer ee ie eptcts seers os 34. 15 12 
Siblasteatirly sw eae ae a ete Roe Ee 18 12 48 
LBC OATES pen Ohloh: Ske Gi o> OR CIRO ae 19 8 30 
ong tredemiangel=wurzel iy “reek ets sci eers 26 116) ete 
PSCan le betel Ie re DCA De. m art acr- oe veucst oft. wats sea 8 20 Sires eas: 48 
Boston eawar te wd Xe DEA ss /c.tels< es tse, wc ae 7 eis ea 24 
CRS Fay SPITE Sa ie tale ee ME a 1712 wearer ae 12 
PSC emi eK IN CO DLA Mby foc vay stose eevee ene ate os 2 ea es 24 
OV) gun f a A Ate ae reg 24 eo 36+ 
WA LC Vinee er ete tetra. ose sia sieve oboe 6 30+ 18 30 
relow-scallopenuel SQilasink. sh: ie. e. so. Nee ae de re el OF 
fe LLEplee (OPP OLeMtUL Miter. aoa, se ae hoe ante 18 
Montrealautmes muskimelon@... creer. 8 Vial Seg he 60 
OGIO Nhe em Ls pri elas SBE POS ee 18 I2 12 
It is not to be expected nor did the investigator think that the 
same results would be shown on all soils. It is stated that generally 
“fibrous roots having an abundance of food nearby are more con- 
centrated ” than where the opposite is the case. The soil on which 
these plants were grown is a fertile clay loam to the depth of from 
six to ten inches, resting on a tenacious subsoil of gravelly clay. 
“In roots which penetrate the soil it is only the youngest parts with 
their delicate root hairs and papillae that absorb nutriment for the 
use of the plant. The rates of growth of these roots are probably 
largely influenced by temperature and moisture and hence we should 
anticipate a non-accordance of observations made during different 
seasons. or in different climates.” 
Carrot and parsnip seeds were planted in four-inch drain tiles so 
as to prevent the formation of all except vertical roots. These tiles 
were placed upright in the ground, the top flush with the surface 
soil. It was found that roots grew straight down until they came to 
the bottom of the tile (fourteen inches) where a portion of the 
roots continued their downward course and the remainder grew up- 
ward along the outside of the tile, branching more and more until 
within three to six inches of the surface where they extended out 
into the soil in the usual manner. When fertile soil was taken from 
the surface and placed around the bottom of the tile the roots did 
not rise to the extent that they did in the former trials. On this 
