APPENDIX 



In the following citations from the recent works of friends all but one 

 of which have come into the author's hands since the present volume 

 was written, the reader will find not only an amplification by Gies (Note I) 

 and Loeb (Notes III and IV) of certain passages in the text, but in Notes 

 V and VI original views previously and independently expressed by 

 Mathews, which are somewhat similar to those the author has developed 

 under the law of interaction. 



NOTE I 



DIFFERENT MODES OF STORAGE AND RELEASE OF ENERGY IN LIVING 



ORGANISMS 1 



"The elements referred to" ("This energy is distributed among the 

 eighty or more chemical elements of the sun and other stars," p. i8) "are 

 available to plants, in the first place, in the form of compound substances 

 only, simple though those substances are, such as water, carbon dioxid, 

 nitrate, phosphate, etc. When these substances are taken from the air 

 and soil into plants they are reduced in the main, that is, the elements are 

 combined there into new groupings with a storage of energy, the effective 

 radiant kinetic energy from the sun becoming potential energy in the con- 

 stituents of plants. Plant substances are eaten by herbivorous animals, 

 that is to say, these substances are hydrolyzed and oxidized in such 

 animals; the elements are, in the main, 'burst asunder' into new group- 

 ings, with the release of energy, the stored potential energy becoming 

 kinetic. Carnivorous and omnivorous animals obtain plant substances, 

 either directly or in the form of animal matter from herbivorous animals, 

 thus, in effect, doing what herbivorous animals do, namely, using plant 

 substances by disintegrating them with the release of energy." 



NOTE II 



BLUE-GREEN ALG^ POSSIBLY AMONG THE FIRST SETTLERS OF OUR 



PLANET 2 



"In 1883 the small island of Krakatau was destroyed by the most vio- 

 lent volcanic eruption on record. A visit to the islands two months after 

 the eruption showed that 'the three islands were covered with pumice 



' W. J. Gies, letter of May 16, 1917. 



2 Loeb, Jacques, 1916, The Organism as a Whole, p. 21. 



28.^ 



