vi CONTENTS 
CuHapter II]. THe Hasitat 
CONCEPT AND ANALYSIS 
27. Definition of the habitat 
28, Factors 
Classification of Factors = 
29g. The nature of factors 
30. The influence of factors 
Determination of Factors 
31. The need of exact measurement 
32. The value of meteorological methods 
33. Habitat determination 
34. Determinable and efficient diferenees 
Instrumentation 
35. Methods 
36. Method of simple fasteanrents 
37. Method of automatic instruments. 
38. Combined methods 
CONSTRUCTION AND USE OF INSTRUMENTS 
39. The selection of instruments 
Water-content 
40. Value of different instruments 
Geotome methods 
41. The geotome 
42. Soil borers 
43. Taking samples of aoil 
44. Weighing 
45. Computation 
46. Time and location of featlings 
47. Location of readings 
48. Depth of samples ‘ ; 
49. Check and control instruments 
Physical and Physiological. Water 
so. The availability of soil water 
st. Terms 
52. Chresard detenitiation finder conieal 
53. Chresard readings in the field - 
54. Chresard values of different soils 
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