192 Proceedings of Indiana Academy of Science. 
13th. The latest killing frost in the spring occurred May 16th, and the 
earliest killing frost in the fall was September 21st. The average grow- 
ing season is 169 days, ranging from 144 days in 1895 and 1904 to 210 
in 1902. 
The prevailing direction of the wind is from the west throughout 
the year. 
The only available data on average hourly wind movement (miles), 
mean relative humidity (percentage), and sunshine (percentage) is 
from Fort Wayne from a five-year record. (See table below.) 
The precipitation of Cass County is adequate for all crop require- 
ments of that region, and it is uniformly distributed over the growing 
season. The greatest amount of the year falls during the summer 
months. Dry and wet spells are not unknown, but they do not nor- 
mally destroy the crops. The dry spells usually occur during the middle 
or late summer, while the wet season normally comes in the winter or 
spring, as the spring high water. r 
| es ysl 2 E 
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n © =} = o ra) oa 2 
| Pe tats Mca ty se hs 2 | 3 
P| Pe RL! oe oe Neale 
> -) 4 =| =| | @ 5 = = Hes) 
MonrTus. a - 6 BI z 5 = = E = 3 
oA bated eee = eV = = gap a 2) ee 90 
ae a BIG D & & = = ° o o o 
c} >| wa | A |e. | a. Dh ~ = 2 A a | 
= = ZO 5 sf |]«ae = o = = a= — 
St 2°) BS 1S. | Ss | Sa: | ee |S) | ee 
7) ra = = = = tr ras = fa fa wa 
January... Peal Gale (2232) 1 s9aga| orn e464) 1820 69 25 | 9.6 82 82 30 
HIGDIUALY eo oc oes | 6.7 | 2.64 7.7 | 26.4 | 35.1 | 17.1 69 ae He Bee 81 77 44 
Wiatteliata: ts at cel, eee OL GION ST Gia y28 lo2826 87 3} 10:8 80 74 52 
Aprile sss. ...-| 0.4 | 3.81 | 10.6 | 51.1 | 61.4 | 40.3 91 15 | 11.1 78 70 56 
May.. ...s2.%.| trace| 4.31 | 11.5 | 62.3 | 74.1 | 50.2] 101 DShlone 78 68 59 
Thine eae i. 0| 3.73 | 9.3 | 71.5 | 83.7] 58.7 | 103 Basal 76 62 70 
Rn Wana oes co eho, 0| 3.25 | 8.3 | 75.5 | 87.7] 62.4] 106 ABT 782 78 64 67 
August... 0| 3.11 | 6.9 | 72.5 | 85.4 |60.2 | 103 AU F7e5el) e865 68 61 
September ; 0: | 38:22 7.2 | 66.3 | 78.9 | 53.6 102 30 te |, #8p 73 62 
October.... ; trace | 2.56 1 SleDoe eal Opiate) 4125 91 | 18 8.4 87 72 51 
November ; 1.0 } 3.15 8.4 | 40.5 | 49.6 | 30.9 80 a Vag he a 3 73 42 
December...... 4.2) 2.54 | 8.2 | 29.6 | 37.4 | 22.7 70 15) 10.5 83 80 30 
Season.......... ...| 23.1 137.5 | 10.4] 51.0| 61.8 40.4] 106’ 25| 9.6| 82] 72] 52 
| | | 
SoILs. 
Definition.—Soils consist of the broken and decomposed portions of 
rocks mixed with more or less organic matter in various stages of de- 
composition. To the agriculturist it is that portion of the earth’s sur- 
face into which the roots of plants may penetrate and obtain nourish- 
ment. 
