Germination of Forest Trees 



Soil Moisture Content Twenty-four Hours After Watering 



Depth 5.0 cm. 



31 



Date 



Loam, Per Cent 



Sand, Per Cent 



Gravel, Per lent 



1 1 ,'14. . . 



12/lS. . 



I/I5... 

 2/15. . . 



3/iS--- 



4/15- 



Average 



27.7 

 25.6 



25.1 

 26.1 

 28.7 

 27.4 



2.4 

 2.1 



2-5 

 2.0 

 2.4 

 1.9 



26.8 



4.9 



2.2 



The temperature and humidity of the air were determined by 

 a hydrothermograph which was checked every Monday morning 

 by means of a cog psychometer and humidity tables (the baro- 

 metric pressure used was 29 inches). The record sheets were 

 summarized and the results for the entire period are given below 

 by weekly averages : 



Week Ending 



Temperature, Degrees Fahr. 



Min. 



Me 



w Weekly 



Weekly M 



Ran g e ! 2 Hr. 



Relative Humidity, 

 Per Cent 



Min. 



Max. 



Weekly- 

 Mean, 

 2 Hr. 



November i 

 8 



IS 



22 



29 



December 6 



13 

 20 

 27 

 January 3 

 10 



17. 

 24 



3i 

 February 7 



14 



21, 



28 

 March 7, 



14. 



21. 



28. 

 April 4. 



11. 



18. 



25- 

 May 2. 



60 

 53 



52 

 49 

 54 

 59 

 59 

 52 

 5i 

 56 

 52 

 54 

 47 

 53 

 53 

 57 

 52 

 55 

 57 

 54 

 59 

 54 

 53 

 55 

 47 

 49 

 61 



100 

 99 

 94 

 90 

 90 

 89 

 87 

 83 

 88 



93 



89 



85 



96 



88 



98 



98 



95 



98 



100 



98 



100 



100 



100 



100 



100 



100 



100 



40 

 46 

 42 

 4i 

 36 

 30 

 28 

 3i 

 37 

 37 

 37 

 3i 

 49 

 35 

 45 

 4i 

 43 

 43 

 43 

 44 

 4i 

 46 



47 

 45 

 53 

 51 

 39 



71.7 



67.9 

 67.8 

 66.6 

 67.2 

 70.2 



69.7 

 67.8 

 67.0 

 72.9 

 67-3 

 64.6 



65-4 

 64.6 



70.4 

 68.4 



61.5 

 64.9 

 63.2 



65.5 

 67.4 



63. 

 66. 

 64. 

 64. 

 73. 

 75. 



18 



34 

 20 

 29 

 21 

 32 

 37 

 38 

 35 

 34 

 41 

 30 

 39 

 43 

 33 

 38 

 35 

 25 

 21 

 28 

 22 

 28 

 23 

 23 

 18 

 24 

 18 



78 

 93 

 90 



75 

 75 

 84 

 66 

 62 

 57 

 69 

 79 

 76 



75 

 82 

 68 

 78 

 85 

 65 

 60 



65 

 63 

 83 

 88 

 61 



85 

 90 

 92 



49.0 

 69.4 

 64.0 

 54-9 

 55-9 

 60.7 

 55-0 

 48.9 

 48.8 

 52.8 

 64.7 

 64.1 



58.5 

 65-7 

 54-5 

 62.2 



71.7 

 54-o 

 53-7 

 54-6 

 50.5 

 62.0 



55-7 

 47.2 

 49.9 

 68.3 

 63.0 



