710 MEMOIR OF GUYOT. 



strongly underscored word, excellent, thrice repeated ; and more than 

 once he wrote him that the whole conception carried out in the volume 

 was a marked i^rogress. He also told Guyot that he had made the 

 volume his vade mecum on a long summer journey. 



The work has passed through several editions in Great Britain, and 

 has been translated into German and Swedish ; and a translation into 

 French, by Mr. Faure, will be published this year in Paris. 



Guyot's views put the earth's 'genesis or development, as a sentence 

 cited from him shows, under his general formula for historical progress; 

 and although the subject is not dwelt upon in his Earth and Man, a 

 brief statement of his argument and conclusions is, therefore, in place 

 here. 



The subject came under his consideration at Neuchatel, in 1840, while 

 preparing a lecture for his course iu Physical Geography. Looking 

 only to the suggestions of science, under which the so-called nebular 

 theory had iu his mind a place, he made out a scheme of the successive 

 stages in the earth's development. After its completion it "flashed" 

 upon him that the Succession arrived at was just that of the cosmogonic 

 record in Genesis, and this led later to a critical comparison of the two. 

 Harmonizing the Bible and science was, hence, far from his original 

 purpose. 



Tiie succession in the scheme so derived was (as I learned it from 

 him) as follows : 



(1) The endowing of matter and space with forces, whence the begin- 

 ning of its activity. 



(2) The stage of specialization, or that of the subdividing of the origi- 

 nal matter or nebula through the forces communicated, and thus the 

 development of systems of spheres in space. 



(3) The stage of the individualized worlds — the earth among them — 

 and the commencing preparation of the earth for new developments 

 j)ertaining to organic nature. 



The events thus far are those of the inorganic part of the cosmogony. 

 In the organic period there was : 



(1) Life, manifested in the simpler kinds of plants. Next, animal or 

 sentient life under simple forms — the Protozoans. These simple kinds 

 of plants and animals represented the first or germ-like or homogeneous 

 stage iu the development of the system of life. He believed it to be 

 probable that both existed before the close of Archaean time. 



(2) The stage of specialization, or that of the development of plants 

 and animals of higher and higher grade, under various types or sub- 

 divisions, based severally on different structural and physiological 

 qualities. 



(3) The stage of the synthetic or harmonic type. Among plants, that 

 of the Dicotyledons, in which the different kinds of tissues in plants, 

 and the stem, leaf, and flowers are for the first time harmoniously com- 

 bined ; and among animals, that of the vertebrates, in which the ner- 



