Pickering — Picon. 



973 



Zeitsehr. f. physik. Chemie: Ostwald: Mole- 

 kulare Verminderg. d. Kristallisatsgeschwind. 

 durch Zusatz v. Fremdst., 33 S. (42, 1903). 



V^ Pickering, Edward Ch., Dr. phil. 

 1903 Heidelberg, D. litt. 12 Pittsburgh; 

 war o. Prof., prakt. Astron., Harvard 

 Coli. Observ., Cambridge, Mass.; * 1846, 

 t 1919, Febr. 3, Cambridge. — (Nachr. 

 2 S. in Chicago, Astrophys. Journ., 49 & 

 50, 19, 1 S. in Viertel]. -Sehr. d. Astron. 

 Ges., 54, 19, 1 S. inParis, Acad. C. R., 168, 

 19, 1 S. in Canada, Astron. Soc. Journ., 

 13, 19, & 1 S. in Astron. Nachr., 208, 19.) 



Annais of astronomical observ. of Harvard 

 Coli., Bd. 46, Teil 2: Observats. of variable stars 

 made w. meridian photometer during 1S92 — 98, 

 130 S., London 1904. — Desgl., Bd. 53. I: Stars 

 near south pole; II: Stars near north pole; 

 III: 9. satellite of Saturn; IV: Study of Era- 

 tosthenes (m. W. H. Pickering), 84 S. , London 04. 



— Desgl., Bd. 56; I: Distribut.of stellar spectra, 

 26 S., London 04. — Desgl. Eclipses of Jupiter's 

 satellites 1878—1903, Bd. 52, 148 S., London & 

 Cambridge, Mass. 07. — Photo, study of va- 

 riable Stars (m. W. P. Fleming), 07. — Orat. 

 on the aims of an astronomer del. in Sanders 

 Theatre, june 28, 1906, before the Harvard 

 Chapter of Phi Beta Kappa, Cambridge Mass. 

 07. — Durchmusterg. zones observed w. the 

 12-inch meridian photometer, 235 S., London 10. 



— Future of astronomy, 11 S., Cambridge Mass. 

 10. — Standard photogr. magnitudes of bright 

 stars, 26 S., London 11. — A catalogue of 

 16300 stars observed w. the 12-inch meridian 

 photometer, 263 S., London 13. 



Astron. Nachr.: A new Algol variable 10. 

 1902 Cygni, 2 S. (159, 1902). — Photogr. map 

 of the entire sky, 3 S. (162, 03). — Intensity 

 of spectral lines, 2 S. (163, 03). — Stars ha- 

 ving peculiar spectra, 2 S. — Variable stars in 

 the nebula of Orion, 4 S. (165, 04). — New va- 

 riable stars, 2 & 1 S. — Variable stars of long 

 I)eriod, 3 S. — 152 new variable stars in the 

 Large Magellanic Cloud, 3 S. (166, 04). — 

 A 10. satellite of Saturn, 1 S. (168, 05). — A 

 probable new star, RS Ophiuchi, IS. — VII: 

 Satellit« of Jupiter, 1 S. (169, 05). — A syste- 

 matic study of faint stars, 2 S. • — Observat. of 

 Phoebe 1905, 2 S. (171, 06). — Variability of 

 the lunar crater Linne, 1 S. (173, 07). — Stan- 

 dard stellar magnitudes, 2 S. (174, 07). — A 

 6. tipe of stellar spectra, 3 S. (179, 09). — Dis- 

 tribut. of the stars, 2 S. (180, 09). — A Stan- 

 dard Scale of photogr. magnit., 3 S. (181, 09). — 

 Absolute wavelengths, 2 S. (184, 10). 



Chicago. Astrophys. Journ.: A new Algol 

 variable, — lö" 4905, 3 S. — The moon: a 

 summary of the exist. knowledge of our sa- 

 tellite; w. complete photogr. atlas, 6 S. (20, 

 1904). — Stars having peculiar spectra; spectra 

 of var., 4 S. — A probable new star, RS Ophiu- 

 chi, 2 S. — Nova Aquilae, Nr. 2, 185604, 4 S. 

 (23, 05). — Determ. nat. of radial mots. by 

 objective prisms, 2 S. — Stars having pecu- 

 liar spectra; 29 new var. stars, 10 S. (23 & 27, 

 08). — Determinat. of absolute wave-lenghts w. 

 object. pr., 4 S. (31, 10). 



Philadelphia, Phil. Soc. Proc. : An interna- 

 tional southem telescop, 10 S. (45, 1906). — 

 The objective prism, 4 S. (51, 12). 



JV Piekering, William H.; stud. 

 Boston; Assist. Prof., Astron., Univ., 



Cambridge, Mass.; * 1858, Febr. 15, 

 Boston. (Eig. Mitt.) 



The moon, 102 S., 100 Taf., New York 1903. — 

 Ann. Astron. Observ., Harv. Coli.: Photogra- 

 phic atlas of the moon, 86 Taf., London 04. — 

 The moon. Summary of recent advances in our 

 knowledge of our satellite, complete Photogra- 

 phie atlas, 116 S., London 04. — Researches of 

 the Boyden department, Cambridge Mass. 08. 



— A Statistical investigat. of cometary orbits, 

 208 S., London 12. — Mars, 173 S., 8 Taf., 

 Boston 21. 



Canada, Astron. Soc. Journ.: A simple meth. 

 of determining the time, 3 S. (7, 1913). — Di- 

 stances of 2 star Clusters, 4 S. (12, 18). 



Chicago, Astrophys. Journ.: Evolut. of the 

 solar System, 2 S. (22, 1905). — Stationary me- 

 teoric radiants. The size of meteors, 16 & 2 S. 

 (29 & 31, 09 & 10). 



London, Astron. Soc. Nonth. Mot.: The mot. 

 of the solar System relatively to the interstel- 

 lar absorbing medium, 4 S. (72, 1911/12). — 

 Seasonal changes occuring in cert. lunar cra- 

 ters, 6 S. (81, 21). 



Siehe E. C. Pickering. 



IV Pickering, P. Spencer U., M. A. 

 1880 London; war Chemiker, London; 

 * 1858, t 1920, Dez. 5. — (Nachr. 6 S. in 

 London Chem. Soc. Journ., 119, 1921.) 



Fruit trees & their enemies, w. a spraying calen- 

 dar (m. Fred. V. Theobald), 118 S., London 1908. 

 London. Chem. Soc. Journ.: Emulss., 20 S. 

 (91, 1907) (auch in Kolloidzeitschr., 5 S., 7, 

 10). — Hydrat, of precipitates, 6 S. — Carbo- 

 nates of Cu & cupricarbonates, 21 S. (95, 09). — 

 Cupricitrates, 14 S. — Constitut. of basic salts, 

 10 S. (97, 10). — K-cupricarbonates, 11 S. (99, 

 11). — Cu-salts; behaviour w. alkalis, 19 S. — 

 Alkaline cupri-compounds. 12 S. — Colour in- 

 tens, of Cu-salts, 10 S. (101, 12). — Note on 

 cupric malate & citrate, 3 S. — Organic ferric 

 salts, 10 S. (103, 13). — Colour intensity of Fe 

 & Cu Compounds, 21 S. (105, 14). — Metallo- 

 compounds of Co & Ni, 14 S. — Met. compds. 

 in solut., 5 S. (107, 15). — Compounds of Fe, 

 Mn, Pb & the metals of group 2, 16 S. (109, 16). 



— The detergent act. of soap, 16 S. (111, 17). — 

 London. Roy. Soc. Proc: Problems bearing 



on residual affinity, 17 S. (93, 1917). — Floccu- 

 lat., 11 S. (94, 18). 



Picon, Marius; Preparateur de tra- 

 vaux pratiques, Chemie, Univ., Paris. 



Paris, Acad C. R. : Preparat. du butine pur, 3 S. 



— Preparat. du pentine normal. Remarques sur 

 1. points de fus. & d'ebullit. d. preraiers termes 

 d. carb. acet. vrais normaux, 3 S. (158, 1914). 



— Act. de l'acetylene monosode siu- qqs. ethers 

 halogen^s d. alcools secondaires & tertiaires, 4 S. 



— Act. de l'acet. monos. sur qqs. iodures d"al- 

 cools primaires a chaine ramifiee, 3 S. (168, 

 19). — Preparat. de qqs. carbures acet. vrais 

 au moyen de l'acet. monos., 3 S. (169, 19). — 

 Nouv. procede de preparat. d. deriv. sodes d. 

 carb. acet. vrais, 4 S. (173, 21). — Act. du 

 sodammonium sur l'hexamethylenetetramine, 

 le t^tramethyldiaminomethane & l'ethylidene 

 ethylimine, 4 S. — Act. du sodammonium sur 

 l'aniline & ses homologues, 4 S. (175, 22). 



Paris, Soc. Chlm. Hüll.: Nouv. proc6de de 

 preparat. d. deriv. sodes d. carb. acet. vrais, 

 4 S. (29, 1921). 



Siehe P. Lebe au. 



