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Hawkins, John. Account of a species of Bark, 

 the original Quina-Quina of Peru, sent over by 

 Mons. de LA CONDAMINE to Cromwell MORTI- 

 MER, about 1749. [1794.] Linn. Soc. Trans. 

 III., _1 797, pp. 59-61. 



Hawkins, John. Notice sur quelques mines 

 soumarines, notamment sur le Huel-Werry en 

 Cornouailles. Journ. des Mines, XVI., 1804, 

 pp. 383-394. 



2. On submarine mines. Cornwall, Geol. 



Soc. Trans. I., 1818, pp. 127-142. 



.. . 3. On some remarkable phenomena attend- 

 ing the lodes of Polgooth Tin Mine. Corn- 

 wall, Geol. Soc. Trans. I., 1818, pp. 143-153. 



4. On a process of refining Tin. Corn- 

 wall, Geol. Soc. Trans. I., 1818, pp. 200-211. 



5. On some advantages which Cornwall 



possesses for the study of geology, and on the 

 use which may be made of them. Cornwall, 

 Geol. Soc. Trans. LT., 1822, pp. 1-13. 



6. On the stratified deposits of Tin-stone 



called Tin-floors, and on the diffusion of Tin- 

 stone through the mass of some primitive rocks. 

 Cornwall, Geol. Soc. Trans. II., 1822, pp. 29-48. 



7. On the nomenclature of the Cornish 



rocks. [1818.] Cornwall, Geol. Soc. Trans. 

 II., 1822, pp. 145-158 ; Tilloch, Phil. Mag. 

 LXL, 1823, pp. 102-109. 



8. On the phenomena of intersected lodes, 



and on the legitimate inferences which may be 

 drawn from them. [1820.] Cornwall, Geol. 

 Soc. Trans. II., 1822, pp. 225-231. 



- 9. On the intersection of lodes in the 

 direction of their dip or underlie. [1820.] 

 Cornwall, Geol. Soc. Trans. II., 1822, pp. 232- 

 241. 



10. Observations on the alluvial strata of 



Porth, Sandrycock, and Pentuan. [1819.] 

 Cornwall, Geol. Soc. Trans. II., 1822, pp. 285- 

 289. 



11. On some instances of the alternate 



disposition of the primitive strata, which have 

 been observed in Cornwall. [1820.] Corn- 

 wall, Geol. Soc. Trans. II., 1822, pp. 376-382. 



12. On the changes which appear to have 



taken place in the primitive form of the Corn- 

 ish peninsula. Cornwall, Geol. Soc. Trans. 

 HI., 1827, pp. 1-16. 



- . 13. On the produce of the Copper Mines 



of Europe and Asia, and particularly those of 

 Armenia. [1827.] Cornwall, Geol. Soc. Trans. 

 III., 1827, pp. 256-312. 



14. Some general observations on the 



structure and composition of the Cornish penin- 

 sula. [1828.] Cornwall, Geol. Soc. Trans. 

 IV., 1832, pp. 1-20. 



15. Some observations made in Cornwall 



in the summer of 1829. Cornwall, Geol. Soc. 

 Trans. IV., 1832, pp. 40-46. 



Hawkins, John. 16. On the state of our Tin 

 Mines at different periods, until the commence- 

 ment of the Eighteenth Century. Cornwall, 

 Geol. Soc. Trans. IV., 1832, pp. 70-94. 



17. On a very singular deposit of alluvial 



matter on St. Agnes Beacon, and on the gra- 

 nitical rock which occurs in the same situation. 

 [1830.] Cornwall, Geol. Soc. Trans. IV., 

 1832, pp. 135-144. 



18. Some account of the soft Growan at 



the Beam Mine, in the parish of Roche, and at 

 Carclaze Mine, in the parish of St. Austle. 

 [1830.] Cornwall, Geol. Soc. Trans. IV., 1832. 

 pp. 475-480. 



19. Some account of the Porcelain Earth 



found in the kingdom of Saxony and the prin- 

 cipality of Passau, and the circumstances under 

 which it occurs. Cornwall, Geol. Soc. Trans. 

 VI., 1846, pp. 32-40. 



Hawkins, John Isaac. An investigation of the 

 principle of Mr. SAXTON'S locomotive Differ- 

 ential Pulley, and a description of a mode of 

 producing rapid and uninterrupted travelling 

 by means of a succession of such pulleys, set in 

 motion by horses or by stationary steam engines. 

 Brit. Assoc. Rep. 1833, pp. 424-426. 



Hawkins, John J. Account of the invention of 

 the Compound Barrel and Winch, and its useful 

 application on a large scale. Nicholson, Journ. 

 VII., 1804, pp. 267-269. 



2. On Vaccination. An examination of 



several of the mis-statements of Dr. ROWLEY. 

 TiUoch, Phil. Mag. XXIV., 1806, pp. 204- 

 209. 



Hawkshaw, John. Notice of the fossil footsteps 

 in the New Red Sandstone Quarry at Lymm, 

 in Cheshire. Brit. Assoc. Rep. 1842 (pt. 2), 

 pp. 56-57. 



2. Description of the fossil trees found in 



the excavations for the Manchester and Bolton 

 Railway. [1839-40.] Geol. Soc. Trans. VI., 

 1842, pp. 173-176; Froriep, Notizen, XIV., 

 1840, col. 81-83 ; Geol. Soc. Proc. HI., 1842, 

 pp. 139-140, 269-270. 



3. Further observations on the fossil trees 



found on the Manchester and Bolton Railway. 

 Geol. Soc. Trans. VI., 1842, pp. 177-180. 



4. Some observations on the present state 



of geological inquiry as to the origin of Coal. 



Sturgeon, Ann. Philos. I., 1843, pp. 249-266. 

 Hawle, Ignaz, uud A. J. C. Corda. Prodrom 



einer Monographic der Bohmischen Trilobiten. 



Bohm. Gesell. Abh. V., 1848, pp. 117-292. 

 Hawley, Richard Haddock. On the vital, or 



self-moving powers inherent in the Blood. 



Edinb. Med. Surg. Journ. XLVL, 1836, pp. 



305-308. 

 Hawn, F. The trias of Kansas. St. Louis, 



Trans. Acad. Sci. I., 1856-60, pp. 171-172. 



