214 HOW CROPS GROW. 
second, the second from the third, etc.,) the gain from 
matters absorbed or produced during each period, wil. 
serve to justify the deductions that follow, which are taken 
from the treatise of Arendt, and which apply, of course, 
only to the plants examined by this investigator. 
1,000 EntrrE PLANTS, (WATER-FREE.) 
. @e8e le clSs.le clSsele ulSgela ulSge 
BSo 8815, Co 88/2, Slo S38/3. Sloss ]2.2 ass 
SSSVSIESTISESIGSTISSSISSVISSSIERTISES 
SB°OSsslE$SISsy <=/Ss </°S8 slsss 
SESESIS P/SESIS PSSSIS OISESIS P1888 
ost q q xy bi 
Period I.| Period II. |Period III.| Period IV.| Period V 
= 3 leaves} Heading Beginning 
open.* out. Blossomed.| to ripen. Ripe. 
RSS CE aCRASStabar 103.3 | 459.7| 356.4) 564.8] 105.1) 545.0] Loss| 550.6] Loss 
«os -- « [Matters 20.1 48.9] 28.8] 82.9] 34.0! 97.6] 14.7] 89.8] Lose 
Other non nitrogenous} 201.4 | 624.6} 423.2) 916.7] 292.1/1242.6] 825.9/1340.0] 97.4 
Albuminoids............. 95.4 | 158.9} 63.5) 202.8] 43.9) 317.8} 115.0) 351.6] 34.2 
[ere este | a aie ea en | | ee 
Organic matter........... 419.2 |1292.21 873.0/1767.21 475.1/2203.01 435.8/2331.6! 128.6 
RUMEGReesivcensssscenaanis ele 6.3) 15.82) 9.43] 23.45] 9.63) 34.66] 9.21] 36.82) 1.66 
Sulphuric acid............ 1.06 2.71| 1.65] 2.68 4 83} 2.12) 5.34) 0.41 
Phosphorie acid : 3.27 5.99) 2.72] 10.32} 4.33) 12.90) 2.58} 14.23) 1.38 
Oxide of iron. 0.20 0.46} 0.26) 0.61) 0.15) 0.83] 0,22) 0.58) Loss 
| a | BEC : 4,48 8.50! 4.02] 11.60} 3.10] 14.49} 2.89) 14.71) 0.22 
MRETICEID e cccccccasecmstn: 1.53 2.71] 1.18) 8.71] 1.01] 5.42) 1.71] 6.45] 1.08 
(TMOTING Gececsnescdecshaees 2.28 8.62] 1.34] 5.32) 1.70] 5.96] 0.64) 5.78] Loss 
Ritiaeman: ateaeceaces tosses 0.86 1.28} 0.42} 1.47) 0.19} 1.12] Zoss| 0.87] Lose 
FAGAN Me steotas'sabeeiastncasetes 17.05 | 31.11] 14.06} 40.20) 9.09) 44.33) 4.13) 43.76) Loss 
ONT) AGRI AB SERCH OBE COCERE 36.60 | 70.03] 33.48/100.41} 30.33)120.75) 20.34)126.93] 7.18 
Dry Matters. acdecesecens ce 455.8 [1863.6] 907.8/1867.6! 504.012328.81 456.2/2458.51 184 7 
1, The plant increases in total weight, (dry matter,) 
through all its growth, but to unequal degrees in different 
periods. The greatest growth occurs at the time of head- 
ing out; the slowest, within ten days of maturity. 
We may add that the increase of the oat after blossom 
takes place mostly in the seed, the other organs gaining 
but little. The lower leaves almost cease to grow after 
the 2d period. 
2, Fiber is produced most largely at the time of head- 
ing out, (2d period.) When the plant has finished blos- 
soming, (end of 3d period,) the formation of fiber entirely 
ceases, Afterward there appears to occur a slight diminu- 
* The weights in this table are grams. One gram = 15.434 grains. As the 
weights have mostly a comparative value, reduction to the English standard iv 
onnecessary 
