188 BOTANICAL GAZETTE [SEPTEMBER 
Series VIII.—This is a series similar to the last described, and 
carried out at the same time, but having as its basis another 
natural soil, Leonardtown loam poor.'? For the treatments and 
data see the following table, in which the system of notation is the 
same as in the last. The cultures are again arranged by transpira- 
sa, tion figures. 
_ _ Curves for these 
‘data are given in jig 
11. Theyagree very 
well in all points with 
the last series dis 
cussed. , 
Series [X.—This again is similar to Series VII, and was carried 
out at the same time, but is made from Leonardtown loam good, 
Data For Serres VIII 
——<— 
; Green _ | Total tran- 
Treatment Culture no, | PP Ried rons wi De 
Leonardtown loam poor, aerated......... I none bape ee ” 
Leonardtown loam poor, natural......... 2 none 5 rile 
CE ST DOD Mrs res owe es ct 3 2000 este 0 
NaNO,+ Ca;(PO,)2 Ss gigas ba shies we ee oe he 4 3000 7 . 2 a 
A oS Ee ene eee eee 5 2000 7o 
Io per cent. Leonardtown loam, good 
‘aes wie 6 gooo | 7-60 a7 
NaNOQ3. 127 p. p.m 7 ao0F ee 30-5 
KNO. 151 p. p.m 8 fee ae 
Se RON, Doane yp kk vee ds pee ee 9 none 7-45 37-1 
Well S650)... ...... 10 ooo | 5:08 ae 
Stable manure. 7000 p. p. M..........+5 II aces re 87-1 
NaNO, ESO;4- Ca fPO,),....... 6.55. 12 gooo | 9:55 oe 
and sodium nitrate was added at the time of planting Se agi | 
lime, as in the last two series. The system of notation BT 
as above and the cultures are arranged as in the two poe a, 
series. on 
a yellow silty Joa, 
closely resembling loess, and is considered a good soil for g The 
: in Kentucky: 
arge areas in Maryland and Virginia, and to some extent 17 e a dee 
and/poor varieties of this soil are related in the same manner 4S those 
ste 
