HEL] 



947 



[HEN 



Helmholtz, Hermann. 75. Versuche des Herrn 

 A. H. BUCK iiber die Schwingungen der Ge- 

 horknochelchen. [1869.] Heidelberg, Vevhandl. 

 Nat. Med. V., 1871, pp. 63-65. 



76. Ueber die Gesetze der inconstanten 



clectrisnhen Stromc in korperlich ausgedehnten 

 Leitern. [1870]. Heidelberg, Verhaudl. Nat. 

 Med. V., 1871, pp. 84-79. 



77 . Oil the relation of the physical sciences 



to science in general. ( Transl.) Smithsonian 

 Reports, 1871, pp. 217-234. 



78. Ueber die Theorie der Electrodyuaniik. 



Berlin, Monatsber. Akad. 1872, pp. 247-256; 

 Phil. Mag. XLIV., 1872, pp. 530-537 ; Crelle, 

 Journ. Math. LXXV., 1873, pp. 35-66. 



79. Ueber die galvanische Polarisation des 



Platin. llalle, Zeitschr. Gesammt. Naturwiss. 

 VI., 1872, pp. 186-188 ; Chein. Soc. Journ. XL, 



1873, pp. 463-464. 



SO. Vergleich des Ampere'schen uncl Neu- 

 mann'schen Gesetze fur die electrodynamischefl 

 Kriifte. Berlin, Monatsber. Akad. 1873, pp. 

 91-104. 



81. Ueber ein Theorem, geometrisch ahn- 

 liche Bewegungen fliissiger Korper betreffend, 

 nebst Anwendung aul' das Problem, Luftballons 

 zu lenken. Berlin, Monatsber. Akad. 1873, pp. 

 501-514. 



82. Ueber galvanische Polarisation in gas- 

 freien Fliissigkeiten. Berlin, Mouatsber. 

 Akad. 1873, pp. 587-597 ; Annal. Phys. Chem. 

 CL., 1873, pp. 483-495: Phil. Mag. XLVIL, 



1874, pp. 145-153. 



83. Ueber die Grenzen der Leistiingsfdhig- 

 keit der Microscope. Berlin, Monatsber. Akad. 

 1873, pp. 625-626 ; Annal. Phys. f'hera. (Julel- 

 band) 1874, pp. 557-584. 



84. Theoretische Betrachtnngen iiber lenk- 

 bare Luftballons. Dingier, Polytechn. Journ. 

 CCVIL, 1873, pp. 465-469. 



85. On later views of the connection of 



electricity and magnetism. Smithsonian Reports 



for 1373," pp. 246-264. 

 Helmuth, Cltas. A. New species of Mordellis- 



tena collected in Illinois. Philad. Acad. Nat. 



Sci. Proc. 1864, p. 105 ; 1865, p. 96. 

 Helwig, (Dr.). Die .Sublimation der Alkaloide 



und ihre microscopische Verwerthung fiir die 



differentielle Diagnose derselben. Fresenius, 



Zeitschrift, III., 1864, pp. 43-58. 



2. Das Microscop in derToxicologie. Fre- 

 senius, Zeitschrift, III., 1864, pp. 58-64. 



Hement, F. 2. Sur la vallee de la Vezere. 

 Paris, Acad. Sci. Compt. Rend. LXX1V., 1872, 

 pp. 1265-1266. 



3. Observations relatives a raccroissement 



de volume de 1'eau au dessous de 4 degres. 

 Paris, Acad. Sci. Compt. Rend. LXXVIL, 1873, 

 pp. 1219-1220. 



Hemilian, W. Ueber eine bequenie Darstellung 

 der Sulfosiiureu. Annal. Chem. Pharm. 

 CLXVIII., 1873, pp. 145-146. 



Hemilian, JJ~., and Melinkoff, V. Researches 

 upon the part performed by sulphurous acid 

 when employed for effecting the saccharification 

 and alcoholization of grains after the new method. 

 {Transl.) American Chemist, III., 1873, pp. 

 455-456. 



Hemming, J. J. Die dreiseitige korperliche 

 Ecke. Zeitschr. Math. Phys. XVII., 1872, pp. 

 159-164. 



Hempel, . Sur la conduetibilite du gaz 



acldc hypoazotique pour 1'electricite. Paris, 

 Acad. Sci. Compt. Rend. LXIL, 1866, p. 58. 



Hempel, Jean de. Description geologique des 

 environs de Kielce, de Chenciny, et de Malo- 

 goszcz situes au centre de la Pologue. Annales 

 des Mines, XII., 1867, pp. 141-183. 



Hemsley, IV. B. Distribution of British Um- 

 helliferte. Journ. of Bot. V., 1867, pp. 356- 

 365. 



2. Notes on the flora of Sussex. Journ. of 



Bot. VI., 1868, pp. 194-196, 258-268. 



3. On the vegetable productions of Abys- 



sinia, Journ. of Travel, I., 1869, pp. 309-318 ; 

 Belgique Horticole, XIX., 1869, pp. 87-96. 



4. Summary analysis of the flora of Sussex 



(phsenogams and ferns). Brit. Assoc. Rep. 



XL1L, 1872 (Sect.), pp. 128-129; Journ. of 



Bot. I., 1872, pp. 299-302. 



Henderson, Georf/c. Notes on sand-pits, mud- 

 discharges, and brine-pits met with during the 



Yarkand Expedition of 1870. Geol. Soc. Quart. 



Journ. XXVIII., 1872, pp. 402-405; Phil. 



Mag. XL V., 1873, p. 149. 

 Henderson, James. 2. Action of Fluor-spar 



on different qualities of cast-iron. Nature, III., 



1871, p. 435. 

 Henderson, (Dr.) James. Notes on some of 



the physical causes which modify climate. 



[1861.]" Shanghai Journal, I., 1865, pp. 142-158. 

 Henderson, Jo/in. Notice of Slimonia acumi- 



nat-i, from the Silurian of the Pentlaud Hills. 



[1866.] Edinburgh, Geol. Soc. Trans. I., 1870, 



pp. 18-19. 



2. Short notice of three species of Trilobites 



from the Silurian beds of the Peutland Hills. 



[1867.] Edinburgh, Geol. Soc. Trans. I., 1870, 



pp. 21-23. 



3. Notice of recent fossiliferous sandstone 



and clay at Granton. [1869.] Edinburgh, 

 Geol. Soc. Trans. I., 1870, pp. 255-259. 



4. On the age of the felstones and conglo- 

 merates of the Pentland Hills. Brit. Assoc. 

 Rep. XLL, 1871 (Sect.), p. 101. 



5. On Corstorphine Hill, near Edinburgh. 



[1870.] Edinburgh, Geol. Soc. Trans. II., 



1874, pp. 29-33. 



6 D 2 



