86 



ANNUAL REPORTS, SMITHSONIAN INSTITUTION 



Heart, mechanical 



History of the mechanical heart, by 



George B. Griffenhagen and Calvin 



H. Hughes. 1955: 339-356 

 Heart diseases 



Modern developments of Harvey's 



work in the treatment of diseases of 



the heart and circulation, by T. 



Lauder Brunton. 1894: 459-478 

 Heat 



Joining the electric wave and the heat 



wave spectra, by E. F. Nichols and 



J. D. Tear. 1923: 175-185 

 Principles of the mechanical theory of 



heat, by John Miiller. 1 8 68 : 245-280 

 Recent progress in relation to the theory 



of heat, by A. Cazin. 1868: 231- 



244 

 Relative intensity of the heat and light 



of the sun upon different latitudes 



of the earth, by L. W. Meech. 1856: 



321-356 

 Heating buildings 



Warming and ventilating occupied 



buildings, by Arthur Morin. 1873: 



2 93-3 J 8 

 Warming and ventilation, by Arthur 

 Morin. 1874: 272-334 



Headey, J. T. P., Development of Rho- 

 desia and its railway system in rela- 

 tion to oceanic highways. 1905: 

 279-292 



Heaton, Noel, Production and identifica- 

 tion of artificial precious stones. 

 191 1 : 217-234 



Heavy bodies, moving of 



Transportation and lifting of heavy 

 bodies by the ancients, by J. Elfreth 

 Watkins. 1898: 615-619 



Heck, N. H., Coming to grips with the 



earthquake problem. 1931:361-380 



Japanese earthquakes. 1945: 201-217 



Hedley, Charles, Paleogeographical rela- 

 tions of Antarctica. 19 12: 443-453 



Heim, Biological relations between plants 

 and ants. 1896: 411-455 



Heintz, Anatol, How the fishes learned 

 to swim. 1934: 223-245 



Hele-Shaw, H. S., Motion of a perfect 

 liquid. 1899: 1 07-1 18 

 Traveling at high speed on the surface 

 of the earth and above it. 191 1 : 629- 

 649 

 Helicopters 



Autogiro: its characteristics and ac- 

 complishments, by Harold F. Pit- 

 cairn. 1930: 265-271 

 Heliochromes 



Structure of Lippmann heliochromes, 

 by S. R. Cajal. 1907: 239-259 

 Helium 

 Discovery of helium and what came of 

 it, by C. G. Abbot. 1918: 121-126 

 Experiments in radio-activity and the 

 production of helium from radium, 

 by William Ramsey and Frederick 

 Soddy. 1903:203-206 

 Liquefaction of hydrogen and helium, 

 by James Dewar. 1898: 259-266 

 Hellwald, Frederick von, American mi- 

 gration. 1866: 328-345 

 Helmholtz, Hermann Ludwig, Connec- 

 tion of electricity and magnetism. 

 1873: 246-264 

 Relation of the physical sciences to sci- 

 ence in general. 1871 : 217-234 

 Helmholtz, Hermann Ludwig von 

 Helmholtz, by T. C. Mendenhall. 



1895: 781-793 

 Hermann von Helmholtz, by Arthur 



W. Rikker. 1894: 709-718 

 Investigations of Hermann von Helm- 

 holtz on the fundamental principles 

 of mathematics and mechanics, by 

 Leo Koenigsberger. 1896: 93-124 

 Helmholtz, Robert von, Memoir of Gus- 

 tav Robert Kirchhoff . 1889: 527-540 

 Henderson, Edward P., American mete- 

 orites and the National collection. 

 1948:257-268 

 Henderson, E. P., and Perry, Stuart H., 

 Meteorites and their metallic con- 

 stituents. 1942: 235-251 

 Henderson, John G., Aboriginal remains 



near Naples, 111. 1882: 686-721 

 Hennessy, Henry, Physical structure of 

 the earth. 1890:201-219 



