516 



CATALOGUE. — NATURAL HISTORY, PHYSIOLOGY. 



stalk. The wood of a leafstalk, supporting a shoot," was de- 

 posited on the external sides of the vessels, called by Mr. 

 Knight, central vessels, and on the medulla ; but the me- 

 dulla appeared to be inactive in the deposition, nor did any 

 processes originate in it. When abud is inserted on a stock, 

 the new wood appears to be generated above the line of 

 union, and to be produced by the bud. 



When new bark grows over an exposed surface of albur. 

 num, the processes called medullary, which constitute the 

 silver grain of the wood, are seen clearly to originate in the 

 bark, and to ttrminate at the lifeless surface of the albur- 

 num. 



Mr. Knight is still of opinion, that the sap acquires its 

 power of generating wood, from its exposure to light and 

 air in the leaves ; but he thinks it possible that the young 

 bark may in a slight degree supply the place of the leaves, 

 when they are removed : and he concludes from some ex- 

 periments, that when a small part of the wood is deprived 

 of bark, it may be able to transmit a small quantity of sap 

 from the leaves downwards, through its superficial parts, so 

 that a little wood may be generated below ; but that this 

 power is confined within narrow limits. 



By immersing the running roots of a polatoe in a coloured 

 fluid, Mr. Knight traced a great number of vessels, pro- 

 ceeding, from the parent plant, to lamify minutely between 

 the cortical and internal parts of the young tuber : these he 

 supposes to convey nourishment, prepared by the leaves, 

 for the support of the internal parts, conceiving these parts 

 to be analogous to the alburnum of woody, vegetables, 

 which always appears to require the operation of the leaves 

 for its complete organization. 



Zoology. In General. 



Ph. tr. abr. II.vi.73G. V. i. l. 

 *Bufi'on Histoire naturelle. 



Systems. 



Fabricii philosophia entomologia. 

 Fabricii entomologia systematica. 

 Hunter on the identity of the wolf, jackal, and 



dog. Ph. tr. 1787.253. 

 Pinel's classification of animals from the 



lovverjaw. Roz. XLI. 401. 

 Brongniart on the classification of reptiles. 



B. Soc. Phil. n. 35. 



Lac6p^de on an arrangement of birds and 

 mammalia. M. Inst. III. 454, 469. 



Dumeril on the classification of insects. B. 

 Soc. Phil. n. 44. Journ. Phys. LI. 427. 



Distinguishes the genera by the subdivisions of the tarsus. 



Physiology. 



Charlton Physiologia. f. 1654. 



Account of 4 men that lived 24 days in a 



mine without food. Ph. tr. 1684. XIV. 



577. 

 Robinson's account of Jenkins, a fisherman, 



aged 169. Phil. tr. l6yf>. XIX. 265. 

 Seigue on a toad found in an oak 100 years 



old. A. P. 1731. H. 24. 



Another found in an elm 171a. 



JHa/fs's Statical essays. 2 v. 8. 1731. R. I. 

 Miles on the globules of the blood in the 

 water eft. Ph. tr. 1741. XLI. 725. 



Jurin and Leeuwenhcek found 4 globules of the blood 

 equal in diameter to a wire which measured ^ inch : some 

 were a litile larger. 



A Capricorn beetle found in the centre of a 

 tree. Ph. tr. 1741. XLI.861. 



Mortimer thinks it was nourished by the sap. 



Papers on the fresh water [)olypus. Ph. tr. 

 1742. XLII. 281. 



Maclaurinon the cells of bees. Ph. tr. 1743. 

 XLIL565. 



Lcca/ Traite des sens, 8. Amst. 1744. 



Douglas on the heat of animals. 8. 1747. 



A case of long fasting. C. Bon. II. i. 221. 



Kaan Boerhaave on the cohesion of living 

 solids. N. C. Petr. IV. 343. 



llalkr Elementa physiologiae. 8 v. 4. Lau- 

 sanne, 1757. M. B. 



Tillet on the power of supporting heat. A. P. 

 1764. 186. H. 16. 



Found that 130° R. or 337° F. was supported in an oven 

 for ten minutes. Blagden says 280°. 



Fontanaon the laws of irritability. Ac. Sienn. 



III. 209. 



2 



