AUTHOR-SUBJECT INDEX, 1849-1961 



53 



Dirigibles — Continued 



What constitutes superiority in an air- 

 ship, by Paul Renard. 1909: 141- 



156 



Zeppelin air ship, by Thomas E. Cur- 

 tis. 1900: 217-222 

 Discovery 



Antarctic land of Victoria, from the 

 voyage of the Discovery, by Maurice 

 Zimmerman. 1909: 331-353 

 Disease 

 Natural resistance to infectious disease 

 and its reinforcement, by Simon 

 Flexner. 1909: 723-738 

 Origin and propagation of disease, by 



John C. Dalton. 1873: 226-245 

 See also names of diseases and para- 

 sites 

 District of Columbia, see Washington, 



D.C. 

 Ditmars, Raymond L., and Greenhall, 

 Arthur M., Vampire bat. 1936: 277- 

 296 

 Ditte, Alfred, Metals in the atmosphere. 



1904: 235-247 

 Divining ("dowsing") 



Water divining, by J. W. Gregory. 

 1928: 325-348 

 Dixon, Henry H., Transpiration and the 



ascent of sap. 19 10: 407-425 

 Doan, Charles Austin, Modern medi- 

 cine: the crossroads of the social and 

 the physical sciences. 1938: 511- 



519 



Dobson, G. M. B., Upper atmosphere. 

 1935: 183-196 



Dobzhansky, Theodosius, and Allen, 

 Gordon, Does natural selection con- 

 tinue to operate in modern man- 

 kind? 1958: 359-374 



D'Ocagne, Some remarks on logarithms 

 apropos to their tercentenary. 1914. 

 1 75-1 8 1 



Dodge, N. S., Memoir of Sir John Fred- 

 erick William Herschel. 1871: 109- 

 135 



Dodo 



New light on the dodo and its illus- 

 trators, by Herbert Friedmann. 



J955: 457-48i 



Dogs 



Dogs and savages, by B. Langkavel. 

 1898: 651-675 



Dominian, Leon, Linguistic areas in 

 Europe: their boundaries and polit- 

 ical significance. 1915: 409-443 



Dom Pedro II (Emperor of Brazil) 

 Biographical sketch of Dom Pedro II, 

 Emperor of Brazil, by Anpriso 

 Fialho. 1876: 173-204 



Donati, G. B., Phenomena manifested in 

 telegraph lines during the great 

 aurora borealis of February 4, 1872; 

 and the origin of northern lights. 

 1872: 299-309 



Doncaster, Leonard, Recent work on the 

 determination of sex. 1910: 473- 

 485 



Donnan, F. G., Mystery of life. 1929: 

 309-321 



Doolitde, James H., Early experiments in 

 instrument flying. 1961: 337-355 



Dorp at Observatory (Russia) 



Dorpat and Poulkova, by Cleveland 

 Abbe. 1867: 370-390 



Dorsey, J. Owen, Comparative phonol- 

 ogy of four Siouan languages. 1 883 : 

 919-929 



Douglas, A. Vibert, Astronomy in a world 

 at war. 1944: 155-164 

 Immensities of time and space. 1925: 



x 47-i55 



Island galaxies. 1928: 193-199 



Douglas, James, Conservation of natural 



resources. 1909: 317-329 

 Douglas, A. E., Aspects of the use of 



the annual rings of trees in climatic 



study. 1922: 223-239 

 Tree rings and their relation to solar 



variation and chronology. 193 1: 



3°4-3 I 3 



