HAM] 



151 



[HAM 



Hamilton, (Sir) William R. 41. A new method 

 of expressing in symbolical language the New- 

 tonian law of attraction. Irish Acad. Proc. 

 III., 1847, pp. 344-352. 



42. On a theorem of hodographic isochro- 



nism. Irish Acad. Proc. III., 1847, pp. 417- 

 418, 465-470. 



43. On the application of the calculus of 



quaternions to the theory of the Moon. Irish 

 Acad. Proc. III., 1847, pp. 507-520. 



44. Additional theorems respecting certain 



reciprocal surfaces. Irish Acad. Proc. IV., 

 1850, pp. 192-193. 



45. On theorems relating to surfaces, ob- 

 tained by his method of quaternions. Irish 

 Acad. Proc. IV., 1850, pp. 306-308. 



46. On the equation of the ellipsoid. Irish 



Acad. Proc. IV., 1850, pp. 324-325. 



47. On the inscription of certain " gauche " 



polygons in surfaces of the second degree. 

 Irish Acad. Proc. IV., 1850, pp. 325-326. 



48. On the construction of the ellipsoid by 



two sliding spheres. Irish Acad. Proc. IV., 

 1850, pp. 341-343. 



49. On a theorem respecting ellipsoids, ob- 

 tained by the method of quaternions. Irish 

 Acad. Proc. IV., 1850, pp. 349-355. 



50. On some results obtained by the qua- 

 ternion analysis respecting the inscription of 

 " gauche " polygons in surfaces of the second 

 order. Irish Acad. Proc. IV., 1850, pp. 380- 

 386. 



51. On "gauche" polygons in central 



surfaces of the second order. Irish Acad. Proc. 

 IV., 1850, pp. 541-556. 



52. On continued fractions in quaternions. 



Phil. Mag. III., 1852, pp. 371-373; IV., 1852, 

 p. 303; V., 1853, pp. 117-118, 236-238,321- 

 326. 



53. A generalization of PASCAL'S theorem. 



Irish Acad. Proc. V., 1853, pp. 100-101. 



54. On the nature and properties of the 



aconic function of six sectors. Irish Acad. Proc. 

 V., 1853, pp. 177-186. 



55. On the connexion of quaternions with 



continued fractions and quadratic equations. 

 Irish Acad. Proc. V., 1853, pp. 219-221, 299- 

 301. 



56. On the geometrical interpretation of 

 some results obtained by calculation with biqua- 

 ternions. Irish Acad. Proc. V., 1853, pp. 388- 

 400. 



57. On the geometrical demonstration of 



some theorems by means of the quaternion 

 analysis. Irish Acad. Proc. V., 1853, pp. 407- 

 422. 



58. On the celebrated theorem of DUPIN. 



Irish Acad. Proc. VI., 1853-54, pp. 86-88. 



Hamilton, ( Sir) ll'illiam R. 59. On some exten- 

 sions of quaternions. Irish Acad. Proc. VI., 

 1853-54, pp. 114-115; Phil. Mag. VII., 1854, 

 pp. 492-499; VIII., 1854, pp. 125-137, 261- 

 269; IX., 1855, pp. 46-51, 280-290. 



60. On the solution of the equation of 



LAPLACE'S functions. Irish Acad. Proc. VI., 

 1853-54, pp. 181-185. 



61. On the calculation of the numerical 

 values of a certain class of multiple and definite 

 integrals. Phil. Mag. XIV., 1857, pp. 375- 

 382. 



62. On some quaternion equations con- 

 nected with FRESNEL'S wave-surface for biaxal 

 crystals. Irish Acad. Proc. VII., 1858, pp. 

 122-124, 163-164 ; Brit. Assoc. Eep. 1859 

 (pt. 2), p. 248 ; Nat. Hist. Review, VI., 1859 

 (Proc.), pp. 240-242, 365. 



63. On anharmonic co-ordinates. Nat. 



Hist. Review, VII., 1860 (Proc.), pp. 242-246, 

 325-327, 506-509. 



64. Quaternion proof of a theorem of reci- 

 procity of curves in space. Brit. Assoc. Rep. 

 1862 (pt. 2), p. 4. 



65. Elementary proof that eight perimeters 



of the regular inscribed polygon of twenty sides, 

 exceed twenty-five diameters of the circle. Phil. 

 Mag. XXIII., 1862, pp. 267-269. 



66. On the existence of a symbolic and 



biquadratic equation which is satisfied by the 

 symbol of linear or distributive operation on a 

 quaternion. Phil. Mag. XXIV., 1862, pp. 127- 

 128; Irish Acad. Proc. VIII., 1864, pp. 190-191. 



67. On a new and general method of in- 



verting a linear and quaternion function of a 

 quaternion. [1862.] Irish Acad. Proc. VIII., 

 1864, pp. 182-183. 



68. On "gauche" curves of the third de- 

 gree. [1863.] Irish Acad. Proc. VIII., 1864, 

 pp. 331-334. 



69. On a general centre of applied forces. 



[1863.] Irish Acad. Proc. VIII., 1864, p. 394. 



Hamlin, Amos. Observations on Bots iu Horses. 

 Baltimore, Med. Phys. Recorder, I., 1809, pp. 

 361-364. 



Hammargren, T. Verzeichniss der in den 

 Kiistengegenden des Sees Wenern in Schweden 

 observirten Vogel. Naurnannia, 1853, pp. 290 

 296. 



2. Foglar i Wermland, Dalsland och We- 



uern. Stockholm, Ofversigt, X., 1853, pp. 121- 

 122. 



3. Ovanliga fargvarieteter af hareu (Lepus 

 borealis) och bjorktrasten (Turdus pilaris). 

 Stockholm, Ofversigt, XI., 1854, pp. 19-21. 



4. Om Parus borealis, DC Scli/s Lonff- 



champ (Poscila borealis, Ch. Bonap.), och den 

 s. k. briimfallningen hos vissa foglar. Stock- 

 holm, Ofversigt, XI., 1854, pp. 216-219. 



