Familiar Letters on Chemistry


Lu par LibriVox Volunteers

(4.3 étoiles; 38 critiques)

Justus von Liebig (1803-1873) was a German chemist who made major contributions to agricultural and biological chemistry and is known for his discovery of nitrogen as an essential plant nutrient. These letters “were written for the especial purpose of exciting the attention of governments, and an enlightened public, to the necessity of establishing Schools of Chemistry, and of promoting by every means, the study of a science so intimately connected with the arts, pursuits, and social well-being of modern civilised nations.” (Summary by Wikipedia and J.M. Smallheer)

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Preface/TOC 7:38 Lu par J. M. Smallheer
Letter I - The Subject Proposed 13:40 Lu par ML Cohen
Letter II - Changes of Form which every kind of Matter undergoes. 13:39 Lu par ML Cohen
Letter III - The Manufacture of Soda from Culinary Salt... 17:26 Lu par Peter Yearsley
Letter IV - Connection of Theory with Practice 17:44 Lu par Peter Yearsley
Letter V - ISOMERISM 13:46 Lu par Peter Yearsley
Letter VI - ALLIANCE OF CHEMISTRY WITH PHYSIOLOGY 10:35 Lu par J. M. Smallheer
Letter VII - ANIMAL HEAT, its laws and influence on the Animal Functions 20:24 Lu par Gary Gilberd
Letter VIII - ALIMENTS 15:44 Lu par J. M. Smallheer
Letter IX - Growth of Animals 12:29 Lu par ML Cohen
Letter X - Application of the preceding facts to Man 10:51 Lu par ML Cohen
Letter XI - CIRCULATION OF MATTER IN THE ANIMAL AND VEGETABLE KINGDOMS 16:21 Lu par Larysa Jaworski
Letter XII - SCIENCE AND ART OF AGRICULTURE. NECESSITY OF CHEMISTRY. 10:32 Lu par Larysa Jaworski
Letter XIII - ILLUSTRATION OF THE NECESSITY OF CHEMISTRY TO ADVANCE AND PERFECT AGRICULTURE 12:42 Lu par Larysa Jaworski
Letter XIV - NATURE AND EFFECTS OF MANURES 15:28 Lu par Esther
Letter XV - SOURCE OF THE CARBON AND NITROGEN OF PLANTS 33:17 Lu par Gary Gilberd
Letter XVI - RESULTS OF THE AUTHOR'S LATEST INQUIRIES 10:12 Lu par Peter Yearsley

Critiques


(4 étoiles)

this is a good introduction to agronomy, a bit dated and neglecting the microbial influence, but very good for home gardeners, or farmers wanting to find the roots of their "science and art"


(5 étoiles)

Full of fun facts! Although I'm not sure of it's accuracy.