SOU] 



453 



fSOR 



16, 1876, pp. 225-234; Pharmaceut. Journ., 6, 



1876, pp. 1005-1008. 

 Sorby, Henry Clifton. 91. On the characteristic 



colouring-matters of the red groups of Algse. 



[1875.] Linn. Soc. Journ. (Bot.), 15, 1877, pp. 



34-40. 



92. On the critical point in the consolida- 

 tion of granitic rocks. [1876.] Mineralog. Mag., 



1, 1877, pp. 41-45. 



93. Anniversary address [before the Mi- 



crosc. Soc., Feb. 7 th . Microscopical investigation 

 of sands and clays]. Monthly Microsc. Journ., 

 17, 1877, pp. 113-136, 249; Nature, 15, 1877, 

 p. 356. 



94. On the structure and origin of me- 

 teorites. [Abstract of lecture.! Nature, 15, 

 1877, pp. 495-498. 



95. On a simple method for determining 



the index of refraction of small portions of 

 transparent minerals. Preliminary notice. Mi- 

 neralog. Mag., 1, 1877, pp. 97-98. 



96. On a new method for studying the 



optical characters of minerals. Brit. Assoc. 

 Rep., 1877 (Sect.), p. 77; Yorkshire Geol. Soc. 

 Proc., 7 (1878-81), pp. 5-15 : Nature, 18, 1878, 

 pp. 684-686. 



97. [Presidential address to the Mineralog. 



Soc., Plymouth, Aug. 15th. On a new method 

 for the optical investigation of crystals.] Mine- 

 ralog. Mag., 1, 1877, pp. 193-208. 



98. On a new arrangement for distin- 

 guishing the axes of doubly refracting substances. 

 Monthly Microsc. Journ., 18, 1877, pp. 209-211. 



99. On some hitherto undescribed optical 



properties of doubly refracting crystals. Preli- 

 minary notice. [1877.] Roy. Soc. Proc., 26, 

 1878, pp. 384-386. 



1OO. [Presidential address before the Mi- 

 crosc. Soc., Feb. 6 th . Some simple additions to 

 the microscope.] Microsc. Soc. Journ., 1, 1878, 

 pp. 1-18. 



101. On the determination of the index 



of refraction of liquids by means of the micro- 

 scope. Chem. Soc. Journ., 33, 1878, pp. 487-494. 



102. On the colouring matters found in 



human hair. [1878.] Anthropol. Instit. Journ., 

 8, 1879, pp. 1-13. 



103. On the determination of the minerals 



in thin sections of rocks by means of their indices 

 of refraction. [1878.] Mineralog. Mag., 2, 1879, 

 pp. 1-4. 



104. Further improvements in studying 



the optical characters of minerals. [1878.] Mi- 

 neralog. Mag., 2, 1879, pp. 103-105. 



1O5. [Presidential address before the Geol. 

 Soc., Feb. 21st. Structure and origin of lime- 

 stones.] Geol. Soc. Quart. Journ., 35, 1879 

 (Proc.), pp. 39-95; Nature, 19, 1879, pp. 424- 

 425; Popular Sci. Review, 18,1879, pp. 134-137. 



Sorby, Henry Clifton. 1O6. On the cause of 

 the production of different secondary forms of 

 crystals. [1879.] Mineralog. Mag., 3, 1880, 

 pp. 111-113. 



1O7. [Presidential address before the Geol. 



Soc., Feb. 20 th . On the structure and origin of 

 non-calcareous stratified rocks.] Geol. Soc. Quart. 

 Journ., 36, 1880 (Proc.), pp. 33-92; Nature, 21, 

 1880, pp. 431-432. 



1O8. [Presidential address before the Geol. 



Sect, of the Brit. Assoc., Swansea, Aug. 26th. 

 The comparative structure of artificial slags and 

 erupted rocks.] Brit. Assoc. Rep., 1880, pp. 

 565-573; Nature, 22, 1880, pp. 390-393; Chemi- 

 cal News, 42, 1880, pp. 167-171. 



1O9. On the green colour of the hair of 



sloths. Linn. Soc. Jouru. (Zool.), 15, 1881, pp. 

 337-341 ; (Bot.), 19, 1882, pp. 8-9. 



11O. The microscopical structure of iron 



and steel. Van Nostrand's Engin. Mag., 28, 

 1883, pp. 14-16. 



Sorby, Henry Clifton, & Butler, P. J. 2. On 

 the microscopical structure of amber. Monthly 

 Microsc. Journ., 16, 1876, pp. 225-231. 



Sorby, Henry Clifton, & Herdman, William 

 Abbott. On the ascidians collected during the 

 cruise of the yacht Glimpse, 1881. [1882.] Linn. 

 Soc. Journ. (Zool.), 16, 1883, pp. 527-536. 



Sorby, Henry Clifton, & Hodgkinson, William 

 R. Eaton. Pigmentum nigrum, the black colour- 

 ing matter contained in hair and feathers. Cheni. 

 Soc. Journ., 1877, 1, p. 427. 



Sordelli, Ferdinando. 7. *Notizie anatoniiche 

 sul Limax etruscus, Issel. Bull. Malacol. Ital., 

 5, 1872, pp. 5-13. 



8. Elenco dei molluschi raccolti dal march. 



Carlo ERMES VISCONTI in alcune localita del 

 Bergamasco. Milano, Soc. Ital. Atti, 17, 1874, 

 pp. 34-40. 



9. [Osservazione su di una formica, Lepto- 



thorax unifasciatus.] Milano, Soc. Ital. Atti, 

 17, 1874, pp. 56-58. 



1O. La fauna marina di Cassina Rizzardi. 



Osservazioni paleontologiche. Milano, Soc. Ital. 

 Atti, 18, 1875, pp. 308-357. 



11. Nuove osservazioni sulla fauna fossile 



di Cassina Rizzardi. [1876.] Milano, Soc. Ital. 

 Atti, 18, 1875, pp. 437-475. 



12. Descrizione di una rana polimelica 



del Museo Civico di Milano con alcune considera- 

 zioni sulla polimelia e sulla polidattilia negli 

 articolati. Milano, Soc. Ital. Atti, 19, 1876, pp. 

 392-398. 



13. Observations sur quelques plantes 



fossiles du Tessin meridional et sur les gise- 

 ments qui les renferment a propos de la contro- 

 verse glaciaire. Archives Sci. Phys. Nat., 59, 

 1877, pp. 250-271. 

 14. Nuovo caso di polimelia nella rana 



