ROO] 



777 



[ROQ 



Rood, Ogden N. 23. On the action of very 

 weak electric light on the iodized plate. Amer. 

 Journ. Sci. XXXVII., 1864, pp. 207-209. 



24. On the study of the electric spark by 



the aid of photography. On the form of the 

 figure produced by the induction coil. Amer. 

 Journ. Sci. XXXVIII., 1884, pp. 361-372. 



25. On the combination which takes place 



when light of different tints is presented to the 

 right and left eye. Amer. Journ. Sci. XXXIX., 

 1865, pp. 254-259. 



26. On an experiment with the gyroscope. 



Amer. Journ. Sci. XXXIX., 1865, pp. 259- 

 260. 



27. Description of a simple apparatus for 



producing lustre without the use of lustrous sur- 

 faces or of the stereoscope. Amer. Journ. Sci. 

 XXXIX., 1865, p. 260. 



28. On the green tint produced by mixing 



blue and yellow powders. Amer. Journ. Sci. 

 XLL, 1866, pp. 369-371. 



29. On the production of thermo-electric 



currents by percussion. Amer. Journ. Sci. 

 XLIL, 1866, pp. 12-19. 



3O. On a theory proposed by FRESNEL, and 



on a mode of measuring the average size of very 

 fine particles. [1866.] Araer. Journ. Sci. 

 XLIIL, 1867, pp. 104-106; Phil. Mag. XXXI1L, 

 1867, pp. 540-542; Annal. Phys. Chem. 

 CXXXIV., 1868, pp. 333-336; Annales de 

 Chimie, XIII., 1868, pp. 462-463. 



31. On the nature and duration of the dis- 

 charge of a Leyden jar connected with an induc- 

 tion coil. Amer. Journ. Sci. XLVIIL, 1869, 

 pp. 153-163; II., 1871, pp. 160-167; IV., 

 1872, pp. 249-255, 371-377. 



32. Photometric experiments. Part 1. On 



a simple form of photometer for determining the 

 amount of light reflected by metallic surfaces at 

 different incidences. Amer. Journ. Sci. XLIX., 

 1870, pp. 145-152. 



33. Photometric experiments. Part 2. On 



the amount of light transmitted by plates of 

 polished crown glass at a perpendicular incidence. 

 Amer. Journ. Sci. L., 1870, pp. 1-10; Carl, 

 Repertorium, VII., 1871, pp. 204-223. 



34. On the duration of flashes of lightning. 



[1870.] Amer. Journ. Sci. I., 1871, pp. 15- 

 16; Phil. Mag. XLL, 1871, pp. 159-160. 

 . 35. On the amount of time necessary f Di- 

 vision. Amer. Journ. Sci. II., 1871, pp. 159- 

 160; Phil. Mag, XLIL, 1871, p. 320. 



36. Observations on the duration and mul- 

 tiple character of flashes of lightning. Amer. 

 Journ. Sci. V., 1873, pp. 163-170. 



37. On a secondary spectrum of very large 



size, with a construction for secondary spectra. 

 Amer. Journ. Sci. VI., 1873, pp. 172-180. 



VOL. VIII. 



Rooke, (Capt.) W. A boat-voyage along the 

 coast-lakes of East Madagascar. [1865.] Geogr. 

 Soc. Journ. XXXVL, 1866, pp. 52-64. 



Roos, P. F., und Hubner, ff. Ueber isomere 

 Bromtoluidine. Deutsch. Chem. Gesell. Ber. 

 VI., 1873, pp. 799-801. 



Roos, R. B. de. *Vereenvoudigde Dipleidoscoop, 

 of beknopt toestel ter bepaling van den waren 

 tijd, door middel van den doorgang der zon door 

 den meridiaau. Arnhem, Natuurkuude, XL, 

 1856, pp. 11-13. 



Root, Edward W. On Wilsonite from St. Law- 

 rence county, N. Y. [1867.] Amer. Journ. 

 Sci. XLV., 1868, pp. 47-48. 



2. On Enargite from the Morning Star 



Mine, California. Amer. Journ. Sci. XLVL, 

 1 868, pp. 201-203; Geol. Mag. VI., 1869, pp. 

 119-120. 



Rope, G. T. Ornithological Notes from Leiston, 



Suffolk. Zoologist, VIII., 1873, pp. 3606- 



3610. 

 Roper, Freeman C. S. 7. *Note on some species 



of Elide guano, described by Dr. C. JOHNSTON. 



[1859.] Quart. Jouru. Microsc. Sci. VIII., 



1860, pp. 16-18. 



8. On the ^ occurrence of Beania mirabilis 



and Labrus mixtus at Eastbourne, Sussex. Ann. 

 Mag. Nat. Hist. IV., 1869, pp. 293-294. 



9. Notes on a flint-pebble. Eastbourne, 



Nat. Hist. Soc. Proc. 1870. 



1O. On the blue striped Wrasse. East- 

 bourne, Nat. Hist. Soc. Proc. 1870. 



11. On the Polyzoa found at Eastbourne. 



Eastbourne, Nat. Hist. Soc. Proc. 1870. 



12. On Dysidea fragilis, a species of Sponge. 



Eastbourne, Nat. Hist. Soc. Proc. 1870. 



13. On the inhabitants of 'an oyster-shell. 



Eastbourne, Nat. Hist. Soc. Proc. 1871. 



14. On the species of Hepaticas found in 



the Eastbourne district. Eastbourne, Nat. Hist. 

 Soc. Proc. 1871. 



15. A few notes on the flora of Eastbourne 



as compared with that of south-western Surrey. 

 Eastbourne, Nat. Hist. Soc. Proc. J873, pp. 

 2-4. 



16. What is chalk ? Eastbourne, Nat. Hist. 



Soc. Proc. 1873, pp. 7-9. 



17. Notes on the genus Lemna. Journ. of 



Bot. II., 1873, pp. 28-30. 



18. Note on the Wall Pellitory (Parietaria 



officinalis). Monthly Microsc. Journ. IX., 1873, 

 pp. 197-199. 



Ropper, W. T. Notice of some minerals from 

 New Jersey. Amer. Journ. Sci. L., 1870, pp. 

 35-38. 



Roque, F. De 1'inegalite des pupilles dans les 

 affections unilaterales des diverses regions du 

 corps. Archives de Physiol. IV., 1872, pp. 

 48-58. 



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