DUC1 



744 



[DUF 



stratigraphie de 1'eboulis de Solutre. Paris, Soc. 



Anthropol. Bull., 11, 1876, pp. 48G-4S9. 

 Ducrost, (L'Abbe), & Lortet, L. To reference 



iu Title ( Vol. 7) add Lyon, Mus. Hist. Nat. 



Archives, 1, 1872, pp. 7-35. 

 Dudgeon, John. The diseases of China ; their 



causes, conditions, and prevalence, contrasted 



with those of Europe. Glasgow Med. Journ., 



9, 1877, pp. 174-203, 309-341. 



2. On leprosy in China. Glasgow Med. 



Journ., 9, 1877, pp." 451-460. 

 Dudgeon, J'u/i-ick. Historical notes on the 



occurrence of gold in the south of Scotland. 



[187G.] Mineralog. Mag., 1, 1877, pp. 21-28. 

 2. Note on a new fossil foot-print from 



the permian sandstone of Dumfriesshire. [1876.] 



Edinburgh, Roy. Soc. Proa, 9, 1878, pp. 154- 



155. 

 Dudley, Charles B. On lithium glass. Amer. 



Assoc. Proc., 23, 1874 (1't. 1), pp. G3-G5. 



2. The chemical composition and physical 

 properties of steel rails. [1st Report.] [1877.] 

 Franklin Instit, Journ., 70, 1878, pp. 301-390; 

 Oesterreich. Zeitschr. Bergwesen, 27, 1879, pp. 

 104-100. 



3. Does the wearing power of steel rails 

 increase with the hardness of the steel? [1878.] 

 Franklin Instit. Journ., 77, 1879, pp. 10-13. 



4. The wearing power of steel rails in 



relation to their chemical composition and physical 

 properties. [2nd Report.] Franklin Instit. 

 Journ., 81, 1881, pp. 177-190, 241-261. 



Dudley, P. II. On the uses of his dynagraph, 

 and the work performed in determining the 

 resistance of railway trains, etc. [1879.] Wash- 

 ington, Phil. Soc. Bull., 3, 1880, pp. 29-32. 



Dudley, William L. Preliminary notice of a new 

 volatile alkaloid [spigelina]. [1879.] Amer. 

 Chem. Journ., 1, 1880, pp. 154-155. 



2. Laboratory notes. On a modification 

 of BOTTGER'S test for sugar. A new test for gallic 

 acid. [1880.] Amer. Chem. Journ., 2, 1881, 

 pp. 47-48. 



3. HOLLAND'S process for melting iridium. 



Chemical News, 45, 1882, pp. 1G8-1G9. 



Dudley, William L., & Clarke, Frank Wiggles- 

 worth. Graphite from Ducktown, Tennessee. 

 [1880.] Amer. Chem. Journ., 2, 1881, pp. 331 

 -332. 



Dufau, Henri. Theoreme de 1'hexagone inscrit 

 dans une conique. Nouv. Ann. Math., 1, 1882, 

 pp. 99-102. 



Dufay, (Dr.). La notion de la personnalite. Revue 

 Scieutif., 11, 1876, pp. 09-71. 



Dufet, Ifi'nry. Sur la conductibilite electrique 

 de la pyrite. Paris, Acad. Sci. Compt. Rend., 

 81, 1875, pp. 628-031; Assoc. FranQ. Compt. 

 ., 4, 1875, pp. 403-400. 

 2. Note sur les deformations des fossiles 



contenus dans les roches schisteuses, et sur la 

 determination de quelques especes du genre Ogy- 

 gia. Paris, Ecole Norm. Annales, 4, 1875, pp. 

 183-190. 



Dufet, Henry. 3. Sur la variation des indices 

 de refraction dans des melanges de sels iso- 

 morphes. Paris, Acad. Sci. Compt. Rend., 80, 

 1878, pp. 881-884; Paris, Soc. Phys. Seances, 

 1878, pp. 11 2-1 If) ; Journ. de Physique, 7, 1878, 

 pp. 325-328. 



4. Sur les proprietes optiques des melanges 

 de sels isomorphes. Paris, Acad. Sci. Compt. 

 Kcml, 91, 1880, pp. 280-289; Paris, Soc. Phys. 

 Seances, 1880, pp. 101-104. 



5. Variation des indices de refraction du 

 gypse avec la temperature. Paris, Soc. Phys. 

 Seances, 1881, pp. 230-243 ; Journ. de Physique, 

 10, 1881, pp. 513-519; Annal. Phys. Chem., 

 Beibl., 5, 1881, pp. 593-594; 0, 1882, p. 287; 

 Neues Jahrb. Mineral., 1882 (Bd. 1, Re/.), pp. 

 184-185, 347-348. 



6. Note sur la theorie du saccharimetre 

 LAURENT a lumiere blanche. Journ. de Physique, 

 1, 1882, pp. 552-558. 



7. Sur la variation des indices de refrac- 



tion de 1'eau et du quartz, sous 1'influence de la 

 temperature. Paris, Acad. Sci. Compt. Rend., 

 90, 1883, pp. 1221-1224; Paris, Soc. Phys. 

 Seances, 1883, pp. 104-107. 



Duff, James. On the utilisation of waste pro- 

 duce of forests and woodlands as matter for 

 making, either separately or in combination with 

 other substances, an artificial fuel. Highland 

 Soc. Trans., 10, 1878, pp. 227-232. 



Duffy, Patrick. 3. Melting-points of fats. Chemical 

 News, 32, 1875, pp. 27-28. 



Dufosse, (Dr.). 6. Recherches sur les bruits et 

 les sons expressifs que font entendre les poissons 

 d'Europe, et sur les organes producteurs de ces 

 phenomenes acoustiques, ainsi que sur les ap- 

 pareils de 1'audition de plusieurs de ces animaux. 

 Ann. Sci. Nat. (Zool.), 19, 1874 (Art. 5); 20, 

 1874 (Art. 3). 



7. Sur un organe de prehension chez un 

 poisson et autres fragments pour servir a la 

 monographic du genre Hippocampe. Robin, 

 Journ. Anat., 10, 1874, pp. 308-375. 



Dufour, Charles. 31. De 1'alteration des images 

 par reflexion sur la surface des eaux. [1874.] Lau- 

 sanne, Soc. Vaud. Bull., 13, 1874-75, pp. 303 

 -309. 



32. Summary of meteorological observa- 

 tions made at Rossiniere, Canton Vaud, Switzer- 

 land, by Messrs HEXCHOZ, between the years 

 1799 and 1850. [Transl. by Col. WARD.] 

 Symons, Meteorol. Mag., 9, 1874, pp. 05-71. 



33. [Sur un nouveau theoreme de trigono- 

 metrie : la hauteur d'un triangle est egale a la 

 base divisee par la sonime des cotangentes des 



