Hillebrand — Hilpert. 



539^ 



mann's surf aces discovered by Lüroth & Clebsch, 

 16 S. (10, 11/12). — Classificat. of the Integrals 

 of linear partial differential equat. of the first 

 Order, 54 S. (16, 18). — On the continuat. of 

 the hypergeom. series, 14 S. — On the singular 

 soluts. of ordinary dif f . equat. of the first order 

 with transcendental coeff., 35 S. (17, 18). — 

 On the use of a property of Jacobians to deter- 

 mine the character of any solut. of an ordinary 

 differential equ. of the 1. order or of a linear 

 partial dif f. equ. of the 1. order, 8 S. — On 

 the integrals of the dif f. equ. of the 1. order 

 derivable from an irreducible algebraic primi- 

 tive, 16 S. (20, 21). 



Mathem, Gaz.: Theory of proport. (1912). 

 — Partial fracts. associated with quadratic 

 factors, 2 S. (22). 



Messenser of Math.: On the series for the 

 sine & cosine, 12 S. (1905). — Existence of the 

 integrals of a linear diff. equ. of the 2. order, 

 2 S. (09). — On Euler's identities, 5 S. (44, 

 14/15). 



Proc. of the congr. of mathemat.: Teaching 

 of the theory of proport., 24 S. — Continuat. of 

 the hypergeometric series, 9 S. (1, 1912) (auch 

 in Lond., Math. Soc. Proc, 17, 1917, 13 S.). 



Quart, Journ. of pure <& appl. Math.: A reci- 

 procal relat. betw. generalised hypergeometric 

 series (m. F. J. W. Whipple), 8 S. (41, 1910). 



IV Hillebrand, Carl, Dr. phil. 1890 

 Wien; seit 1911 o. Prof., Astron., Univ., 

 Graz; * 1861, Dez. 26, Wien. (Eig. 

 Mitt.) 



Astron. Nachr. : Ephem. d. Kometen Win- 

 neckef ür d. Erschein. 1903—04, 2 S. (163, 1903). 



Wien, Akad. Denkschr.: Wahrschein]. Bahn- 

 form & d. Ursprung d. Kometen, 70 S. (81, 

 1908). — Methode d. Ephemeridenrechng 

 mittelst numer. Integrat., 20 S. (84, 09). — 

 Berechng. d. rechtwinkel. heliozentr. Koord. 

 eines Planeten, 22 S. (85, 10). — Dynam. 

 Theorie d. Gezeiten auf einem Maclaurinschen 

 Ellipsoid, 42 S. (89, 14). — Analyse d. Laplace- 

 schen Kosmogonie, 46 S. (96, 19). 



Wien. Akad. S.Ber.: Diffuse Reflexion bei 

 ausgedehnten Lichtquellen, 18 S. (118, 1909). 



IV Hillebrand, William Francis, Dr. 

 phil. 1875 Heidelberg; stud. später Straß- 

 burg &Bergakad., Freiberg; 1880—1908 

 chemist, U.S.Geolog. Survey, seit 08 

 chief chemist, Bureau of Standards, 

 Washington; * 1853, Dez. 12, Honolulu. 



Analyse d. Silikat- & Karbonatgesteine, 1. Aufl., 

 Übersetzg. v. Wilke-Dörfurt, 258 S., Leipzig 

 (vgl. auch Washington, U. S. Geol. Surv. Bull., 

 1910). — ö. Internat. Kongr., angew. Chemie: 

 Review of the progress of analvt. chemistry, 

 (m. zahlr. Mitarb.), 115 S., 1, 1903. — 8. Inter- 

 nat. Kongr., angew. Chemie: Errors in the 

 determinat. of moisture in coal (m. W. L. 

 Badger), 8 S., 10, 12.— 2. Pan Amer. Scientif. 

 Congr., Washington 1915 — 19: Standard me- 

 thods of sampling & analysis & Standard sam- 

 ples, 15S., 8. Bd. (z. T. auch in Ind. Eng. Chem. 

 Journ., 4 S., 8, IG). 



Amer. Chem. Soc. Journ.: Present conditions 

 of analyt. chemistry, 9 S. (87, 1905). — Coope- 

 rative analysis of an argillaceous limestone, 

 17 S. (28, 06). — The present & future of the 

 Amer. Chem. Soc, 18 S.*) — The mercury mine- 

 rals from Terlingua, Tex. : Kleinite Terlinguaite, 

 Eglestonite, Montroydite, Calomel, Mercury*), 



15 S.**) — The V-suIphide, Patronite & its 

 mineral associates from Minasragra, Peru, 1 1 S. 

 (29, 07).**). — Volatilizat., losses of P during 

 evaporats. of phosphates with sulphuric acid 

 or f usions with pyrosulphate (m. G. E. F. Lun- 

 dell), 7 S. (42, 20). 



Am. Chem. Soc. Proc: Prof. R. W. Bunsen 

 (m. A. C. Haie & H. W. Wiley) (1900). — Re- 

 port of the committee on purity of chemic 

 reagents (m. a.), 4 S. (26, 04). 



Amer. Journ., Silliman: Mackintoshite, a 

 new Tb- & U-mineral (m. W. E. Hidden), 6 S. 

 (46, 1893). — Beaver Creek meteorite (m. E. 

 E. Howell), 6 S. (47, 94). — Composit. of 

 Yttrialite, with a criticisme of the formula as- 

 signed to Thalenite, 8 S. (13, 1902).***) — Ad- 

 dits. to the Alunite-Jarosite group of minerals 

 (m. S. L. Penfield), 10 S. (14, 02)***)t) — Cry- 

 stallogr. & chem. notes on Lawsonite*), 3 S. 

 (17, 04)***). — Emmonsite (?) from a new 

 locality, 2 S. (18, 04). — Mosesite, a new Hg- 

 mineral from Terlingua, Tex.*) ^), 7 S.f) — Ä. 

 new occurence of plumbojaurisitc^), 2 S. (30, 

 10). — Two varieties of calciovolborthite (?) 

 from Eastern Utah*), 5 S.f). — A danger to be 

 guarded against in making mineral separats. 

 by means of heavy soluts., 2 S. (35, 13)t). 



Ann. d. Chemie: Liebig: Z. Kenntnis d. 

 Chinasäure (m. R. Fittig), 8 S. (193, 1878). 



Franklin Inst. Journ.: Modern methods of 

 rock- & mineral analysis, 18 & 14 S. (155, 

 1903). 



Ind. Eng. Chem. Journ.: Chemistry in the 

 Bureau of Standards, 4 S. (2, 1910). — Deter- 

 minat. of Mn by the sodium bismuthate method 

 (m. W. Blum), 3 S. (3, 11). — Report of the 

 committee on quality of platinum laboratory 

 Utensils^) <=), 6 & 1 S. (3 & 6, 11 & 14). — Reco- 

 very of Ga from spelter in the United States 

 (m. J. A. Scherrer), 1 S. (8, 16). — Samuel 

 Stockton Voorhees, 1 S. (13, 21) (auch in 

 Science, 21). 



Xat. Geographie Mag.: Chemic. discuss. of 

 analyses of volcanic ejecta from Martinique & 

 St. Vincent, 4 S. (13, 1902). 



Pbiladelpliia, Phii. Soc. Proc: Hewettite, 

 metahewettite & pascoite, hydrous calcium 

 vanadates^) % 24 S. (53, 1914)t). — 



Washington, Acad. Sc. Journ.: Calcium vana- 

 dates from Peru, Colorado & Utah^) *), 1 S. 

 (3, 1913). 



Washington, U. S. Geol. Surv. Bull.: Two 

 Te-minerals from Colorado, 3 S. — Comparison 

 of a wet & crucible-fire method for the assay 

 of gold telluride ores, with notes on the errors 

 occurring in the operats. of f ire assay & par- 

 ting*), 31 S. (1905). — Analysis of Silicate & 

 carbonate rocks, 200 & 285 ^S. (07 & 10). — 

 The Hg-minerals from Terlingua, Tex.*), 

 174 S. (09). 



Mit 1) W. T. Schaller, ") F. A. Canfield. ») F. E. 

 Wright, *) H. E. Merwiu,^) E.T. Allen, «) P.H.Walker. 



auch in •) Science, **) Amer. Jourijal, Silliman, 

 *••) U. S. Geol. Surv. Bull., t) Z. S. f. Kristallogr. 

 & Min. 



i^ Ilillyer, Homer Winthrop, Dr. 

 phil. 1885 Baltimore; seit 1889 Assist.- 

 Prof., Chemie, Univ., Madison, Wisc; 

 * 1859, Jan. 26, Waupun, Wisc. 



Amer. Chem. Soc. Journ.: The cleaning power 

 of soap, 13 S. — A study of soap soluts., 8 S. 

 (25, 1903). 



Hilpert, Siegfried, Dr. phil. 1905 

 Berlin; stud. 02— 05 Berlin; 05—07 Pri- 



