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Spottiswoode, William. 9. On certain theorems 

 in the calculus of operations. Camb. and Dubl. 

 Math. Journ. VIII., 1853, pp. 25-33. 



10. On certain geometrical theorems. 



Camb. and Dubl. Math. Journ. VIIL, 1853, pp. 

 103-104. 



11. On the curvature of curves in space. 

 Camb. and Dubl. Math. Journ. IX., 1854, pp. 

 234-238. 



12. [Geometrical correspondence with Mr. 



DOXKIN.] Crelle, Journ. XL VII., 1854, pp. 

 225-232. 



13. Researches on the theory of invariants. 



Roy. Soc. Proc. VII., 1854-55, pp. 204-207. 

 14. Elementary theorems relating to de- 

 terminants. [1853.] Crelle, Journ. LI., 1856. 

 pp. 209-271, 328-381. 



15. Note on axes of equilibrium. Quart. 



Journ. Math. I., 1857, pp. 36-38. 



16. On a theorem in Statics. Quart. Journ. 

 Math. I., 1857, pp. 38-42. 



17. On an extended form of the index 



symbol in the calculus of operations. Roy. Soc. 

 Proc. X., 1859-60, pp. 207-208 ; Phil. Trans. 

 1860, pp. 13-42. 



18. Note on the supposed discovery of 



the principle of the differential calculus by an 

 Indian astronomer. Asiat. Soc. Journ. XVII., 



1860, pp. 221-222. 



19. On typical mountain ranges : an appli- 

 cation of the calculus of probabilities to physical 

 geography. Geogr. Soc. Proc. IV., 1860, pp. 

 97-100 ; Geogr. Soc. Journ. XXXI., 1861, pp. 

 149-154. 



20. On the calculus of functions. Roy. 



Soc. Proc. XL, 1860-62, pp. 447-449. 



21. On internal and external division in 



the calculus of symbols. Roy. Soc. Proc. XL, 

 1860-62, pp. 557-558. 



22. On a method for determining longi- 

 tude by. means of observations on the Moon's 

 greatest altitude. Astron. Soc. Mem. XXIX., 



1861, pp. 343-355 ; Geogr. Soc. Proc. V., 

 1861, pp. 234-237. 



23. On PETZVAL'S asymptotic method of 



solving differential equations. Brit. Assoc. 

 Rep. 1861 (pt. 2), pp. 10-11 ; Quart. Journ. 

 Math. V., 1862, pp. 154-165. 



24. On the reduction of the decadic binary 



quantic to its canonical form. Brit. Assoc. 

 Rep. 1861 (pt. 2), pp. 11-12. 



25. Sur quelques formules generates dans 



le calcul des operations. Crelle, Journ. LIX., 

 1861, pp. 367-381. 



26. On the contact of curves. [1861.] 



Phil. Trans. 1862, pp. 41-52. 



27. On the calculus of symbols. Phil. 



Trans. 1862, pp. 99-120. 



Spottiswoode, William. 28. On the Siirya 

 Siddhanta, and the Hindoo method of calculating 

 eclipses. Asiat. Soc. Journ. XX., 1863, pp. 

 345-370. 



29. On differential resolvents. Quart. 



Journ. Math. VI., 1863, pp. 262-266 ; Man- 

 chester, Phil. Soc. Mem. II., 1865, pp. 227-232. 

 30. On the equations of rotation of a solid 



body about a fixed point. Roy. Soc. Proc. 

 XIIL, 1863, pp. 52-64. 



Sprague, C. J. Description of Arauja serico- 

 fera. Boston, Proc. Nat. Hist. Soc. IV., 1851- 

 54, pp. 250-252. 



2. On Ranunculus micranthus. Boston. 



Proc. Nat. Hist. Soc. V., 1854-56> pp. 155- 

 156. 



3. Contributions to New England myco- 

 logy. Boston, Proc. Nat, Hist. Soc. V., 1854- 

 56, pp. 323-332 ; VI., 1856-59, pp. 315-321. 



4. On the botanical position of the Chinese 



Sugar-cane. Boston, Proc. Nat. Hist. Soc. 

 VI., 1856-59, pp. 181-183. 



5. The botany of Sorghum vulgare. Boston, 



Proc. Nat. Hist. Soc. VI., 1856-59, pp. 321- 

 326. 



6. Is the Heath indigenous to the United 



States ? Boston, Proc. Nat. Hist. Soc. IX., 



1863, pp. 38-41, 207-210. 

 Spratt, James. Invention of a Homograph, or 



method of communication by signals, on sea or 



land. Nicholson, Joura. XXV., 1810, pp. 325- 



329. 

 Spratt, (Captain} Thomas A. B. Remarks on 



the supposed situation of Minoa and Nisaea. 



Geogr. Soc. Journ. VIIL, 1838, pp. 205-209. 

 2. Notices connected with the geology of 



the island of Rhodes. Geol. Soc. Proc. III., 



1842, pp. 773-775. 



3. On the geology of Lycia. Geol. Soc. 



Journ. I., 1845, pp. 8-10. 



4. On the geology of the southern part of 

 the gulf of Smyrna and the promontory of 

 Karabournou. Geol. Soc. Journ. I., 1845, pp. 

 156-162. 



5. On the geology of the Maltese islands. 

 [1843.] Geol. Soc. Proc. IV., 1846, pp. 225- 

 230. 



6* Remarks on the lakes of Benzerta, in 

 the regency of Tunis. Geogr. Soc. Journ. 

 XVL, 1846, pp. 251-254. 



7. Remarks on the geology of the island 



of Samos. Geol. Soc. Journ. III., 1847, pp. 

 65-67. 



8. On the geology of a part of Euboea and 

 Boeotia. Geol. Soc. Journ. III., 1847, pp. 67- 

 73. 



9. Remarks on the isthmus of Mount 

 Athos. Geogr. Soc. Journ. XVII., 1847, pp. 

 145-149. 



