9 
composition of this advance growth. There are over twenty 
species of hardwoods occurring here. Each pine stand has its 
own characteristic advance growth. 
The fourth factor influencing this reversion is the slow 
growth of pine in its early years. When the pine stand is 
logged all the hardwood advance growth is cut down. In the 
’ following spring the seedling and sapling stumps give forth 
vigorous shoots so that any pine seed which may have fallen 
the previous autumn germinates under a more or less dense 
shade. Red oak appears to have the least vigor in growth 
for the first year after the pine has been removed. The meas- 
urement of 330 oaks at the end of the first growing season 
after removing the pines gave the following results: 
TABLE IV 
Height — Inches Percentage 
ORIO Ste ls want elie, gaits PANGS entiede 54.9 
WOH 20 ee cist eds carihieasd eepetonancrtem aban Acuna oth bates 31.5 
DPB O cs aka ach eects ala face caaatiaton Sachs Patti ea Sah gee apa ES 11.2 
BOHAD i ae adi nealate hac atid eye Sate woman vray ea te 2.1 
A050 ios aust Red oda re ees Sin ee aed eae atone es 0.0 
50=O0 vedas aie ss washes Cees co hee Pe eae eek 0.3 
100% 
Ash has a very vigorous growth in its early years, and in 
Table V is given a comparison in height growth of ash, oak, 
and pine for the first ten years. The areas from which the 
measurements were taken were close to one another and 
were originally covered with almost pure pine. 
TABLE V 
Age in Height in Feet 
Years Asi Oak Pine 
Tike cade alien eoeens 1.5 7 ae 
Sg eSB SoU le ee ek WORE 3.0 1.6 2 
B iia ged rag uee Saeeaes 4.9 2.7 3 
Beet ian aud wine Gen eae 6.5 4.0 5 
eee Se erage Seer ee Tee 8.1 5.4 1.0 
Go esc dca eles sated 9.9 6.7 2.0 
Wer ihihie RNA a ie he pes has cenecaane 11.7 8.1 3.2 
Sav cevc evo ae elle es 13.7 10.4 4.6 
Qos sc cccthe ace ie te ee aed deed erties 15.6 13.3 6.2 
Ok eermadd serdar reas 17.9 16.1 7.8 
