530 PHILOSOPHICAL TRANSACTIONS. ■ [aNNO 1774. 



XXVIII. Extract of a Register of the Barometer, Thermometer, and Rain, at 

 Lyndon in Rutland, \773. By T. Barker, Esq. p. 202. 



This is Mr. Barker's usual annual communication, of the highest, lowest, and 

 mean state, of the barometer and interior and exterior thermometers, for each 

 month in the year. Also the rain of each month, the whole sum being 29^ 

 inches. 



XXIX. On certain Receptacles of ^ir in Birds, which Communicate with the 

 Lungs, and are lodged both among the Fleshy Parts and in the Holloiv Bones 

 of those Animals. By John Hunter, F. R. S. p. 205. 



Reprinted with additions in this author's Observations on the Animal Economy, 

 4to., 1786. 



XXX. M. de Luc^s Rules, for the Measurement of Heights by the Barometer, 



Compared with Theory, and Reduced to English Measures of Length, and 



adapted to Fahrenheit's Scale of the Thermometer: with Tables and Precepts, 



for Expediting the Practical Application of them. By Samuel Horsley, 



LL.D. p. 214. 



After the Astronomer Royal's clear and practical paper on the very same sub- 

 ject, in the 20th article preceding, (p. 520) it is quite unnecessary to reprint this 

 very diffuse and elaborate work; and the rather, as other and later accounts of 

 the same thing are to be seen elsewhere, treated in a manner much more simple 

 and perspicuous. 



XXX L A Catalogue of the Fifty Plants from Chelsea Garden, presented to the 

 Royal Society by the Apothecaries Company, for \TJ3, &c. By Wm. Curtis, 

 clariss. Soc. Pharmaceut. Lond. Soc. Hort. Chelsean. Prcefecl. et Prcelector 

 Botan. p. 302. 



This is the 51st annual presentation, amounting to 2530 plants. 



XXXIL Observations on the Gillaroo Trout, commonly called in Ireland the 

 Gizzard Trout. By John Hunter, F. R. S. p. 310. 



Reprinted in this author's Observations on the Animal Economy, before 

 referred to. 



XXXIU. Explication of a most Remarkable Monogram on the Reverse of a 

 very Ancient Quinarius, never before published or explained. By the Rev. 

 John Swinton, B.D., F. R.S. p. 318. 

 This piece is a very ancient, or rather an original, quinarius, extremely well 



preserved. It has on one side a female head in a helmet, with the letter v be- 



