# Soils, their formation, properties, composition, and relations to climate and plant growth in the humid and arid regions Author: Hilgard, Eugene W. (Eugene Woldemar), 1833-1916 Genre: Category: Science - Earth/Agricultural/Farming Language: English License: Public domain Source: https://www.gutenberg.org/ebooks/73975 Amazon editions: https://www.amazon.com/s?k=Soils%2C+their+formation%2C+properties%2C+composition%2C+and+relations+to+climate+and+plant+Hilgard&tag=cyberlibrar00-20 ## Summary “ VII. Density, Pore Space, and Volume-Weight of Soils. “ VIII. Soil and Subsoil; Causes and Processes of Differentiation; Humus. “ IX. Soil and Subsoil; Organisms Influencing Soil-Conditions. Bacteria. “ X. Soil and Subsoil in their Relations to Vegetation. “ XI. Water of Soils; Hygroscopic and Capillary Moisture. “ XII. Water of Soils; Surface, Hydrostatic, and Ground water; Percolation. “ XIII. Water of Soils; Conservation and Regulation of Soil Moisture. Irrigation. “ XIV. Absorption by Soils of Solids from Solutions. Absorption of Gases. The Air of Soils. “ XV. Colors of Soils. “ XVI. Climate. “ XVII. Relations of Soils and Plant-Growth to Heat. ## Chapters - [CHAPTER XIII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/43/index.md) - [CHAPTER XXIII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/58/index.md) - [CHAPTER XI.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/41/index.md) - [chapter 13, page 242.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/63/index.md) - [CHAPTER XXII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/57/index.md) - [CHAPTER XXIV.[183](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/59/index.md) - [CHAPTER VI.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/36/index.md) - [CHAPTER VIII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/38/index.md) - [chapter 19, p. 352), it must be remembered that those mentioned as](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/56/index.md) - [chapter 9, p. 146); more especially those of nitrification, thus](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/54/index.md) - [CHAPTER X.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/40/index.md) - [CHAPTER XII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/42/index.md) - [chapter 3, page 38).](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/49/index.md) - [CHAPTER III.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/33/index.md) - [CHAPTER V.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/35/index.md) - [CHAPTER IX.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/39/index.md) - [chapter 20, page 379). For in general, we find that _lower percentages](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/52/index.md) - [CHAPTER XIV.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/44/index.md) - [CHAPTER IV.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/34/index.md) - [CHAPTER XXV.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/60/index.md) - [CHAPTER II.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/32/index.md) - [CHAPTER XVI.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/46/index.md) - [chapter 20; except that in this case no chemical neutralization is](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/62/index.md) - [CHAPTER I.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/31/index.md) - [CHAPTER VII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/37/index.md) - [chapter 6, it being No. 219 of the table on p. 98.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/51/index.md) - [CHAPTER XVII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/47/index.md) - [CHAPTER XX.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/53/index.md) - [CHAPTER XXVI.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/30/index.md) - [CHAPTER XVIII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/48/index.md) - [CHAPTER XXVI.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/61/index.md) - [CHAPTER XV.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/45/index.md) - [CHAPTER XXI.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/55/index.md) - [CHAPTER XIX.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/50/index.md) - [CHAPTER XIX.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/23/index.md) - [CHAPTER XXII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/26/index.md) - [CHAPTER XVIII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/22/index.md) - [CHAPTER VIII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/12/index.md) - [CHAPTER XIII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/17/index.md) - [CHAPTER XX.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/24/index.md) - [CHAPTER V.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/9/index.md) - [CHAPTER XXIV.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/28/index.md) - [CHAPTER VI.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/10/index.md) - [CHAPTER X.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/14/index.md) - [CHAPTER IV.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/8/index.md) - [CHAPTER XXIII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/27/index.md) - [CHAPTER XI.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/15/index.md) - [CHAPTER IX.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/13/index.md) - [CHAPTER XIV.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/18/index.md) - [CHAPTER XII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/16/index.md) - [CHAPTER VII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/11/index.md) - [CHAPTER XXV.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/29/index.md) - [CHAPTER II.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/6/index.md) - [CHAPTER I.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/5/index.md) - [CHAPTER XVI.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/20/index.md) - [CHAPTER XVII.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/21/index.md) - [CHAPTER III.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/7/index.md) - [Chapter VI. Physical Composition of Soils.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/2/index.md) - [CHAPTER XXI.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/25/index.md) - [Chapter XXIV. Recognition of the Character of Soils from their](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/4/index.md) - [Chapter XVIII. Physico-Chemical Investigation of Soils in](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/3/index.md) - [Chapter I. Physical Processes of Soil Formation.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/1/index.md) - [CHAPTER XV.](https://www.cyberlibrary.org/en/books/soils-their-formation-properties-composition-and-relations-to-c-a6a309c6/chapters/19/index.md)