HEL] 



947 



[HEN 



Helmholtz, Hermann. 75. Versuche des Hen'n 

 A. H. Buck iiber die Schwingungen der Ge- 

 horknochelchen. [1869.] Heidelberg, Verhandl. 

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



76. Ueber die Gesetze der inconstanten 



electrischen Strome in korperlich ausgedehnten 

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

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



77^ On the relation of the physical sciences 



to science in general. ( Transl.) Smithsonian 

 Reports, 1871, pp. 217-234. 



' 78. Ueber die Theorie der Electrodynamik. 



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

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

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



79. Ueber die galvanische Polarisation des 



Platin. Halle, Zeitschr. Gesamrat. Naturwiss. 

 VI., 1872, pp. 186-188 ; Chem. Soc. Journ. XI., 

 1873, pp. 463-464. 



80. Vergleich des Ampere'schen und Neu- 



mann'schen Gesetze fiir die electrodynamischen 

 Krafte. Berlin, Monatsber. Akad. 1873, pp. 

 91-104. 

 — 81. Ueber ein Theoi'em, geometrisch ahn- 



liche Bewegungen fliissiger Korper betreffend, 

 nebst Anwendung auf das Problem, Luftballons 

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

 501-514. 



82. Ueber galvanische Polarisation in gas- 



freien FlUssigkeiten. Bei'lin, Monatsber. 

 Akad. 1873, pp. 587-597 ; Anna!. Phys. Chem. 

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

 1874, pp. 145-153. 



— 83. Ueber die Grenzen der Leistungsfahig- 

 keit der Microscope. Berlin, Monatsber. Akad. 

 1873, pp. 625-626 ; Annal. Phys. Chem. {Jubel- 

 band) 1874, pp. 557-584. 



— 84. Theoretische Betrachtungen iiber lenk- 

 bare Luftballons. Dingier, Polytechn. Journ. 

 CCVII., 1873, pp. 465-469. 



— 85. On later views of the connection of 



Smithsonian Reports 



electricity and magnetism. 



for 1873, pp. 246-264. 

 Helinuth, Chas. A. New 



tena collected in Illinois. 



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

 Helwig, {Dr.). Die Sublimation 



species of Mordellis- 

 Philad. Acad. Nat. 

 96. 

 der Alkaloide 



und ihre microscopische Verwerthung fiir die 

 differentielle Diagnose derselben. Fresenius, 

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

 — 2. Das Microscop in der Toxicologic. Fre- 



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

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



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



pp. 1265-1266. 

 • 3. Observations relatives a I'accroissement 



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



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



pp. 1219-1220. 



Hemilian, W. Ueber eine bequeme Darstellung 

 der Sulfosauren. Annal. Chem. Pharm. 

 CLXVIII., 1873, pp. 145-146. 



Hemilian, W., and Melinkoff, N. Researches 

 upon the part performed by sulphurous acid 

 when employed for eifecting 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 conductibilite du gaz 



acide hypoazotique pour I'electricite. Paris, 

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



Hempel, Jean de. Description geologique des 

 environs de Kielce, de Chenciny, et de Malo- 

 goszcz situes au centre de la Pologne. Annales 

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



Hemsley, W. B. Distribution of British Um- 

 belliferaj. 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. 

 XLIL, 1872 {Sect), pp. 128-129; Journ. of 

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



Henderson, George. Notes on sand-pits, mud- 

 discharges, and brine-pits met with during the 

 Yarkand Expedition of 1870. Geol. Soc. Quart. 

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

 Mag. XLV., 1873, p. 149. 



Henderson, James. 2, Action of Fluor-spar 

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

 1871, p. 435. 



Henderson, {J)r.) James. Notes on some of 

 the physical causes which modify climate. 

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



Henderson, John. Notice of Slimonia acumi- 

 nata, from the Silurian of the Pentland 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 Pentland 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. 



6d 2 



