708 



Langley — Lapwortli. 



Variationer i de sällsynta jordartemas spektra, 

 19 S. (2, 1915—07). 



Zeitschr. f. physIk. Chemie: Ostwald: Ab- 

 BCH'ptionsspektra d. seltenen Erden, 21 S. (56, 

 1906). 



™ Langley, Samuel P., Dr. sc. 

 Cambridge, England; war Sekretär d. 

 Smithson. Instit., Washington, & Dir., 

 Astrophys. Observat. ; * 1834, Roxbury, 

 nicht Boston (Bd. IV), Mass., f 1906, 

 Febr. 27, Aiken, S. C. — (Nachr. v. A. D. 

 White, E. C. Pickering & 0. Chanute 

 43 S. m. Schr.-Verz. in Smithson. Miscell. 

 Collect., 49, 1907, v. C. G. Abbot 13 S. 

 m. Bildn. & Schr.-Verz. in Astrophys. 

 Journ., 23, 06, & v. Abbot in Astron . 

 Nachr., 3 S., 171,06.) 



The 1900 solar eclipseexpedit. of the Astrophys. 

 Observat. of the Smithson. Institut (m. C. G. 

 Abbot), 26 S., Washington 1904. — Thepossible 

 variat. of the solar radiat. & its probable 

 effeet on terrestrial temperat., Chicago 05 

 (Abdruck aus Chicago, Astrophys. Journ., 

 19, 04). — Researches & experiments in aerial 

 navigat., London 08. 



Chicago, Astrophys, Journ.: The solar con- 

 stant & related problems, 10 S. (17, 1903). — 

 Possible variat. of the solar radiat. & its pro- 

 bable effeet on terrestr. temperat., 16 S. (19, 

 04) (auch in Phil. Mag., 13 S., 8, 04). — Com- 

 parative luminosity & total radiat. of the solar 

 Corona, 2 S. (21, 05). 



New York, Science: The laws of nature, 7 S. 

 (15, 1902). 



Phil. Mag.: Good Seeing. 3 S. (5, 1903). 



Smithson. Contribut.: Experiments in aero- 

 dynamics, 115 S. (1902). — Langley memoir on 

 mechanical flight. I: 1887 — 96, 122 S. (27, 11). 



Smithson. Miscell. Coli.: The cheapestform of 

 light (m. F. W. Very), 20 S. (41, 1901). — Me- 

 thodof avoiding personal equat. in transit obser- 

 vats. 5 S. (45, 04). 



Washington, Annuai Report of the Smithson. 

 Inst.: The greatestflying creature, 10 S. (1902). 

 — Experiments with the Langley aerodrome, 

 12 S. (05). 



Langmuir, Irving, Dr. phil. 1906 

 Göttingen; 1906—09 Instr., Chem., Ste- 

 vens Inst., Hoboken, seit 09 research 

 chemist, Eesearch Lab. of Gen. Electric 

 Co, Schenectady, N. Y.; * 1881, Jan. 31, 

 Brooklyn, N. Y. 



Amer. Chem. Soc. Journ.: Dissociat. of 

 water vapor & carbon dioxide at high tem- 

 perat., 23 S. (28, 1906). — Dissociat. of H into 

 atoms, 17 S. — A chemically active modificat. 

 of H, 15 S. (34, 12). — Chemical reacts. at very 

 low pressures. 1: The clean-up of O in a tung- 

 sten lamp, 22 S. — II: The chemic. clean-up 

 of N in a tungsten lamp, 14 S. (35, 13). — Dis- 

 sociat. of H into atoms. I: Experimental^), 

 15 S. (36, 14). — II: Calculat. of the degree of 

 dissociat. & the heat of format., 42 S. — Chemic. 

 reacts. at low pressures, 29 S. (37, 15). — 

 Radiat. as a factor in chemic. action, 16 S. 

 (42, 20). 



Amer. Phys. Soc. Bev.: Convect. & conduct. 

 of heat in gases, 22 S. (.34, 1912). — The vapor 

 pressure of metallic W, 14 S. — The effeet of 

 Space Charge & residual gases on thermionic 



currents in high vacuum, 37 S. (2, 13). — The 

 vapor pressure of the metals Pt & Mo^), 10 S., 

 (4, 14). — The melting-point of W, 20 S. (6, 

 15). — The characteristics of tungsten fila- 

 ments as functs. of temperat., 19 S. (7, 16). — 

 A high vacuum mercury vapor pump of ex- 

 treme speed 4 S. — Evaporat., condensat. 

 & reflect. of molecules & the mechanism of 

 adsorpt., 28 S. (8, 16). — The evaporat. of 

 small spheres, 3 S. (12, 18). — The structure 

 of the He-atom, 15 S. (17, 21). 



Phil. Mag.: The heat of format. of H fr. H- 

 atoms, 1 S. (27, 1914). 



Physilc. Zeitschr.: D. Dampfdruck v. metall. 

 W, 8 S. (14, 1913). — Thermionenströme im 

 hohen Vakuum. I: Wirkg. d. Raumentladg., 

 6 S. — II: D. Elektronenemiss. seitens des 

 W & d. Wirkg. v. Gasresten, 11 S. (15, 14). 



Zeitschr. f. anorg. Chemie: Lorenz: Chem. 

 Reaktn. bei sehr niedrigen Drucken, 18 S. 

 (85, 1914). 



Zeitschr. f. Elelitrochemle: Dissoziat. d. H 

 in Atome. I: Experimentelles^), 8 S. (20, 1914). 

 — II: Berechng. d. Dissoziat.-Grades & d. Bil- 

 dgswärme (übers, v. A. Koenig), 27 S. (23, 

 17). — III: D. Reaktsmechanismus, 7 S. (26, 

 20). 



Mit 1) G. M. J. Mackay. 



de Lapparent siehe unter D. 

 Lapworth, Arthur, D. Sc; seit 1913 

 Prof., Chemie, Univ , Manchester. 



London, Chem. Soc. Journ.: Product. of 

 some nitro- & amido-hydroxypicolines (m. 

 J. N. Collie), 8 S. (71, 1897). — Derivatives of 

 aa'-dibromocamphorsulphonic acid, 17 S. — 

 Homocamphoronic & camphoronic acids^), 

 18 S. — Action of hydrolytic agents on a-dibro- 

 mocamphor. Constitut. of bromocamphorenic 

 acid, 7 S. (75, 99). — Action of fuming nitric 

 acid on a-dibromocamphor^), 9 S. — Campho- 

 nic, homocamphoronic & camphononic acids^), 

 21 S. — Derivatives of cyanocamphor & of 

 homocamphoric acid, 19 S. (77, 1900). — aa- 

 hydroxycamphorcarboxylic acid^), 9 S. — 

 Form of change in organic Compounds, & the 

 funct. of the a-metaorientating groups, 19 S. — 

 Constitut. of camphanic acid & of bromo- 

 camphoric anhydride (m. W. H. Lenton), 9 S. 

 (79, Ol). — The action of halogens on Com- 

 pounds containing the carbonyl group, 12 S. 

 (8.5, 04). — An examinat. of the concept. of 

 H-ions in catalysis, salt format., & electrolj^ic 

 conduction, 16 S. (93, 08). — The influence of 

 water on the availability of hydrogen chloride 

 in alcoholic solut. (m. J. R. Partington), 15 S. 

 ^97, 10). — Ordinat. of sphingosine & the 

 isolat. & purificat. of cerebrone, 6 S. (103, 13). 

 — Condensat. of chloromethyl ether with d- 

 alkylacetoacetic esters (m. B. S. Meiler), 

 9 S. — Aspects of the theory of acids, 13 S. 

 (107, 15). — The pungent principle of ginger. 

 I: The chemic. characters & decomposit. pro- 

 ducts of Thresh's gingeroP)^), 14 S. — II: 

 Synthetic preparats. of zingerone, methyl- 

 zingerone & some related acids (m. F. H. 

 Wykes), 9 S. (111, 17). — Capsaicin, I^), 8 S. 

 (115, 19). — Homocamphor*), 8 S. (117, 20). — 

 Reduct. of emulsified nitro-compounds. I: 

 /3-phenylhydroxylamine from nitrobenzene^), 



5 S. (119, 21). — A theoret. derivat. of the 

 principle of induced alternate polarities, 12 S. — 

 Reciprocal induced polarity effects in cresols 



6 their derivatives. Properties of the isomeric 

 methoxybenzyl bromides (m. J. B. Shoesmith), 

 9 S. — Syntheses of alkylidenecyanoacetic acids 



