Joseph Barrell. 277 



vicissitudes." ''The progress of life on the earth has 

 been highly favored, consequently, by the rhythmic 

 pulses of diastrophic and climatic changes which have 

 remorselessly urged forward the troop of living crea- 

 tures. The progress of organic evolution has de- 

 pended on a series of fortunate physical events, condi- 

 tioned in the internal nature of sun and earth, rather 

 than the by-product of mere life activities as expressed 

 in orthogenesis through long periods of time. Organic 

 evolution is in no sense an inevitable consequence of life, 

 and the compulsion of climatic change has been more 

 than once a fundamental factor in the age-long ascent 

 from protozoan to man," 



Bibliography. 

 FublisTied WorTcs. 



1899 — Eocky Mountain mine surveying: Some convenient methods wMcli 



are especially suited to the conditions there met. Mines and Min- 

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 Corrections for errors in mine surveying. Ibid., vol. 19, pp. 433-437. 

 Stope books. Methods for keeping precise records of stopes. Ibid., 



vol. 20, pp. 97-100. 

 1900^The real error of a survey. Some notes on the accuracy of surveys 



in inclined seams and an analysis of the sources of error. Ibid., 



vol. 20, pp. 299-301. 

 Surveys in inclined shafts. Theoretical and practical considerations 



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 Eeview of * ' A memoir on the Paleozoic reticulate sponges consti- 

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511-549. 

 The physical effects of contact metamorphism. This Journal (4), 



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 1904 — Eeview of ' ' The evolution of earth structure, " by T. M. Eeade. 



Ibid., vol. 17, pp. 250-251. 

 Eecent studies of the moon's features. Ibid., vol. 18, pp. 314-818. 

 Eeview of ' ' Treatise on metamorphism, " by C. E. Van Hise. Ibid., 



vol. 19, pp. 251-256. 

 1906 — Eelative geological importance of continental, littoral, and marine 



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524-568. 

 Eeview of "A contribution to the oceanography of the Pacific," by 



J. M. Flint. This Journal (4), vol. 21, pp. 333-335. 

 Eeview of "The geodetic evidence of isostasy, " by J. F. Hayford. 



Ibid., vol. 22, pp. 185-186. 

 1907 — Geology of the Marysville mining district, Montana: a study of 



igneous intrusion and contact metamorphism. U. S. Geol. Survey, 



Prof. Paper 57, pp. 178, 16 pis. 

 Eeview of "Lunar and Hawaiian physical features compared," by 



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