Subject Index 



199 



Planets, origin 46-48 



Plants 29, 145 



morphological characteristics 141 



Polyglycine 11 6- 11 8, 121 



Polymers 82, 160-169, 190 



Polymerization 37, 38, 39, 40, 116, 165, 189 



Polynucleotide chains 134 



Polynucleotides. {See also Nucleotides) 39, 

 40 



Polypeptide chains 136, 137, 138 



Polypeptides. {See also Dipeptides, Pep- 

 tides, Proteins etc.) 143, 166 



Porphyrins 43, 69, 126, 127, 128, 130, 165 



Potassiimi 16, 27 



Proterozoic stage 25, 26, 29 



Protein complexes 179-187 



Proteins. {See also Amino acids. Peptides, 

 Polypeptides etc.) 35, 37, 39, 43, 57, 74, 

 136, 141, 142, 144, 145, 148, 151, 159, 

 164, 165, 166, 167, 175, 176, 177 

 configuration 167 

 origin 1 16-122 



Proteolysis 182, 184, 185 



Protoplasm 75 



Protoporphyrin 127, 128, 129 



Protoplasts 175, 176, 177 



Protozoa 44 



Purines 88, 139, 165 



Pyrimidines 88, 139 



Quartz, catalysts 112 



Racemates 75, 77-79, 80, 105-108, 113 

 Radiation 6, 1 1, 75, 76, 79-83, 86, 95, 98- 



104, 148, 189 



damage 192 

 Radicals 37, 50, 190 

 Radioactive decay, earth 4, 6, 16, 18, 21, 



52,68 

 Radiogenic heat 27 

 Reactions 109, 113 



exergonic 33 



geochemical 4 



prototype 64 

 Reductase 109, 113 

 Reproduction 32, 44, 132 

 Resonance, theory 138-139 

 Retinene 192 

 Rhodopsin 191 



Ribonucleic acid 40, 42, 44, 165, 180, 185 

 Rocks 24, 66-68, 69 

 Rotational moment 2 



Saturn 50 



Seismology 4 



Selection 58, 59 



Selenium 59 



Serine. {See also Amino acids) 119 



Sodium chlorate 78 



Solar radiation. {See Radiation) 



Staphylococcus aureus 176 



Starch 172 



Strecker synthesis 93, 94, 95 



Succinic acid 128 



Sugars. {See also Carbohydrates) 165, 172 



formation 35, 43 

 Sulphur 10, 22, 34, 59 

 Sulphur compounds 24, 191, 192 



Tartaric acid 82 

 Tectonic processes 3, 4 

 Tectonic structure 65 

 Temperature. {See also Heat) 



earth 52 



Mars 13 



Venus 12 

 Thiobacillus thio-oxidans 144 

 Thioctic acid 191 

 Thorium 16, 26 

 Toxicity 145 

 Trypsin 182-187 

 Trypsin-ergosterol complex 182, 183 



Ultraviolet light. 

 Uranium 16, 27 

 Uranus 2, 50 



{See under Light) 



Valine. {See also Amino Acids) 121 



Van der Waal's forces 132, 136, 162 



Vanadiiun 59 



Venus 11-13, 49 



Viruses 41, 161, 163, 168 



Vision 191 



Volcanic activity 5, 19, 25, 28 



Volcanic gases 68 



Vulcanism 3 



Water, Earth's 5, 6 



Mars 13 



Venus 12 

 Water cycle 6 

 Water molecules 162 

 Water vapour 4 



Xenon i, 9 

 X-irradiation 193 



