TOW] 



1106 



[TRA 



Townsend, Richard. 1O. Solution, by the 

 method of ordinary homographic division, of 

 the problem : " To inscribe in a given ruled 

 quadric a polygon of any given order whose 

 sides shall pass in any prescribed order of 

 sequence through an arbitrary system of given 

 points in space." [1867.] London, Math. Soc. 

 Proc. II., 1869, pp. 21-24. 



11. On the moment of inertia of a ring 



with respect to its axis of revolution. Quart. 

 Journ. Math. X., 1870, pp. 203-204. 



12. On the nodal cones of quadrinodal 



cubics, and the zomal conies of tetrazomal quar- 

 tics. [1869.] Quart. Journ. Math. X., 1870, 

 pp. 264-284. 



13. On the analogues in the theory of quad- 

 rics to some known properties in the theory of 

 conies. Quart. Journ. Math. XI., 1871, pp. 

 347-362 ; Messenger of Math. I., 1872, p. 70. 



14. On a property in the theory of confocal 

 quadrics. [1871.] Messenger of Math. I., 1872, 

 pp. 49-50. 



15. On the analogue and its reciprocal, in 

 the theory of quadrics, to a known property and 

 its reciprocal, in the theory of conies. [1871.] 

 Messenger of Math. I., 1872, pp. 113-119. 



16. On a property of the wave surface. 

 [1 872.] Messenger of Math. II., 1873, pp. 28-29. 



17. On a property in the theory of con- 



focal conies and its analogue in the theory of 

 confocal quadrics. [1872.1 Messenger of Math. 

 II., 1873, pp. 33-35. 



18. On the attraction of the ellipsoid for 



the law of the inverse fourth power of the dis- 

 tance. [1872.] Quarterly Journ. Math. XII., 

 1873, pp. 66-85. 



. 19. On a construction in rigid dynamics. 



[1 872.] Quarterly Journ. Math. XII., 1873, pp. 



138-145. 

 ... 2O. On a construction in the dynamics of a 



rigid body which rolls without sliding on a fixed 



rough surface. [1872.] Quarterly Journ. 



Math. XII., 1 873, pp. 201-204. 



21. On a property in the equilibrium of 



two circular cords repelling each other according 

 to the law of the inverse cube of the distance. 

 [1872.] Quarterly Journ. Math. XII., 1873, p. 

 214. 



22. On tautrochronous and brachysto- 



chronous curves for parallel and concurrent 

 forces. Quarterly Journ. Math. XII., 1873, pp. 

 247-257. 



Toynbee, (Capt.) Henry. 3. On the specific 

 gravity, temperature, and currents of the seas 

 passed through during voyages from England to 

 India. Geogr. Soc. Journ. XXXV., 1865, pp. 

 147-153 ; Geogr. Soc. Proc. IX., 1865, pp. 281- 

 282; X., 1866, pp. 338-342; Revue Marit. 

 XVIII., 1866, pp. 595-604. 



Toynbee, (Capt.) Henry. 4. On the normal 

 circulation and weight of the atmosphere in the 

 North and South Atlantic Oceans, so far as it 

 can be proved by a steady meteorological regis- 

 tration during five voyages to India. Roy. Soc. 

 Proc. XIV., 1865, pp. 345-349. 



' 5. On the Madras Cyclone of May 2nd 



1872. Quarterly Journ. Meteor. Soc. I., 1873, 

 pp. 160-168. 



Toynbee, Joseph. For Biography, see Archiv 

 Ohrenheilk. HI., 1867, pp. 230-239. 



Tozzetti. See Targioni-Tozzetti. 



Tracy, C. M. 2. Notice of a singular erratic in 

 Lynn, Mass., known by the name of " Phaeton 

 Rock." Essex Institute Bull. I., 1870, pp. 59- 

 64. 



Trail, James W. H. Note on the food plants of 

 Acronycta Menyanthidi s. Entom. Monthly Mag. 

 VII., 1870-71, p. 88. 



- 2. Note on the Lepidoptera of Braemar. 

 Entom. Monthly Mag. VII., 1870-71, pp. 113- 

 114. 



3. Scottish Galls. Scottish Naturalist, I., 



1871-72, pp. 123-125, 156-159, 192-197, 234- 

 235 ; II., 1873-74, pp. 30-32, 78-80, 126-128, 

 170-173, 251-254, 301-305. 



. . 4. On Light as an attraction for Moths. 



Scottish Naturalist, I., 1871-72, pp. 212-213. 

 5. Crambus Myellus in Aberdeenshire. 



Scottish Naturalist, I., 1871-72, pp. 117-118. 



6. Revised variety of Helix memoralis,Zi/m., 



var. hortensis. Scottish Naturalist, I., 1871-72, 

 p. 155. 



7. Captures of Lepidoptera near Aberdeen 



in 1871. Entom. Monthly Mag. IX., 1872-73, 

 pp. 42-44. 



8. Occurrence of galls of Andricus quadri- 



lineatus, Hartig, near Aberdeen. Entom. 

 Monthly Mag. X., 1873-74, p. 39. 



9. Oak galls at Ballater in June, including 



Andricus Amenti, Girand, new to Britain. 

 Entom. Monthly Mag. X., 1873-74, p. 85. 



. 1O. Note on the presence of five toes on each 



leg of a Black-headed Gull (Larus ridibundus). 

 Scottish Naturalist, II., 1873-74, p. 11. 



11. Additions to the Aberdeenshire Fauna. 



[1872.] Scottish Naturalist, II., 1873-74, p. 

 20. 



- 12. Captures of Spiders in Scotland during 

 1872. Scottish Naturalist, II., 1873-74, pp. 23- 

 25. 



13. Occurrence of the Echinorhynchus spi- 



nosus on the Aberdeenshire coast. Scottish 

 Naturalist, II., 1873-74, pp. 155-156. 



. 14. Lepidoptera of Sutherland. Scottish 



Naturalist, III., 1873-74, p. 163. 



15. Scottish Spiders. Scottish Naturalist, 



II., 1873-74, p. 300. 



