On the Physical Properties of Soil. 211 



Soil, in reference to Vegetation, as shown by those Earths of which the 

 is most generally composed. 



Capability 

 of 



11 Drying. 



ID 



s 



=! 



Absorp- 

 tion of 



Absorption 

 of 



Oxygen Gas 



Power 

 of retaining 



Warming of the Earths 

 in the Sun. 



Electrical | 

 and 1 

 Galvanic | 



■q . 



Moisture 

 from the 



from the 

 Atmosphere. 



Pleat. 



Temperature of 



Relations. i 



ited from 100 

 [U;il times. 



by ( qual Por- 

 r 10 the same 



° 



op 



!§ 



Atmo- 

 sphere. 





In the 

 Wet 

 State. 



a 



cc 





their Surfaces (in the same 

 general Temperature of 

 the Air in the Shade). 



on to 

 itive.) 





a 



Q 



1000 

 Grains 

 absorbed, 

 in 



P 



The 

 Earths 

 absorbed 

 in 



30 Days, 

 from )i 1 

 per cent. 



of 

 Oxygen 

 Gas. 



' Calcareous - 

 eing = 100. ' 



Length 

 oftime 

 requ ued 



With 

 Surfaces of 



With 





Power 8 

 of 



Conduct- 

 ing 

 Common 

 Electricity. 



! 11 



P 



s o 



^■^ V 



1000 

 Parts 



lose 

 in Vo- 

 lume. 



>. 



by 

 30 cubic 

 Inches 



the Natural 

 Colour. 



Dry I 



:arth. 



Polar-Elf-ctri. 



H ur 



(— negative. 



Water ( 

 Pari 



? ce S 

 0) S U) 



S 2 ^ 



g 



s 

 o 



<v 

 a 





of Earth 

 to cool. 



With 

 Wet 

 Earth. 



With 

 Dry 

 Earth. 



With 

 White 

 Sur- 

 faces. 



With 

 Black 

 Sur- 

 faces. 



j Parts. 

 1 88.4 



4 4 



Parts. 

 0 



12 



24 

 48 



0 

 0 

 0 



0 



Percent. 

 1.6 



95 6 



H. min. 



3 20 



0 



99.1 



0 



112.6 



0 



109.9 



0 



123.6 



- 



Non- 

 conductor. 





4 44 



0 



12 



24 

 48 



2 

 3 

 3 



0 



5.6 



100.0 



8 30 



99.3 



112.1 



109.9 



124.0 



- 



Non- 

 conductor. 





6 55 



60 



12 

 24 

 48 



21 

 26 

 28 



0 



9.3 



76.9 



2 41 



98.2 



111.4 



108.3 



121.6 



- 



Imperfect 

 conductor. 



1 45 7 



1: 



7 52 



89 



12 

 24 

 48 



25 

 30 

 34 



0 



11.0 



71.8 



2 30 



99.1 



112.1 



107.8 



121.1 





Imperfect 

 conductor. 



1: 



1 34.9 



10 19 



114 



12 



24 

 48 



30 

 36 

 40 



0 



13.6 



68.4 



2 24 



99.3 



112.3 



107.4 



120.4 





Imperfect 

 conductor. 



31.9 



11 17 



183 



12 

 24 

 48 



37 

 42 

 48 



0 



15.3 



OD . / 



2 19 



99.5 



113.0 



106.3 



120.0 





Imperfect 

 conductor. 



i 28.0 



12 51 



50 



12 

 24 

 48 



26 

 31 

 35 



0 



10.8 



61.3 



2 10 



96.1 



109.4 



109.2 



122.9 





Non- 

 conductor. 



i 10.8 



33 20 



154 



12 

 24 



48 



69 



76 



80 



0 



17.0 



38.0 



1 20 



95.2 



108.7 



108.7 



121.3 





Non- 

 conductor. 



1 



I 



5 1 



A 

 U 



12 

 24 

 48 



1 

 1 

 1 



0 



2.7 



73.8 



2 34 



97.3 



110.5 



110.3 



124.3 



+ 



Non- 

 conductor. 



■s.o 



5 53 



35 



12 



24 



48 



24 

 29 

 32 



0 



11.0 



98.1 



3 26 



101.8 



115.3 



108.3 



123.4 





Imperfect 

 conductor. 



1 20. & 



17 33 



200 



12 

 24 

 48 



80 

 97 



no 



0 



20.3 



49.0 



1 43 



103.6 



117.3 



108.5 



120.9 



+ 



Non- 

 conductor. 



1 24.3 



14 49 



149 



12 



24 

 48 



35 

 45 

 50 



0 



18.0 



64.8 



2 16 



99.5 



113.5 



108.3 



122.5 





Weak 

 imperfect 

 conductor. 



32.0 



11 15 



120 



12 

 24 

 48 



16 

 22 

 23 



0 



16.2 



70.1 



2 27 



97.7 



111.7 



107.6 



122. 0 



+ 



We. k 

 imperfect 

 conductor. 



P 



