710 



PHILOSOPHICAL TRANSACTIONS. 



[anno 1790. 



The direct distances are the most accurate, the others being affected according 

 to the exactness of the meridian of the west extremity of the base ; the direction 

 of which was found by the variation needle, its declination having been deter- 

 mined at Frampton-house, and therefore sufficiently correct; for an error in that 

 angle, even of half a degree, would make a difference of a very few seconds in 

 any of the places observed. 



The following are the longitudes and latitudes of the same places, deduced by 

 Gen. Roy's most accurate and useful tables, showing the value of each degree, &c. 



Longitudes west of 

 Greenwich, 



in time. 



m. s. 



12 24 — 



13 28 — 



13 4>7k 



14 4- 

 14 17h 

 14 29 - 

 14 29h 

 14 3l| 

 14 32 + 

 14 34^ 

 14 36' + 

 14 37h 

 14 45 



14 57 — 



15 48^ 



16 42I 



in deg. &c. 



5 58 



21 57 



26 52 



30 1 



34 23 



37 12 



37 24 



37 52 



38 2 



38 38 



39 1 

 39 22 

 41 15 

 44 14 

 57 7 

 10 35 



Brin Hill, the centre. 



Quantock Hill, east part. 



Land-mark, a tower. 



Watchet Hill, the centre. 



St. Hilary's Church. 



A remarkable hill. 



Llanmace Church. 



Minehead. 



Frampton-house. 



Llantwit Church. 



Station, west extremity of the base. 



Liang wyne war Hill, east part. 



St. Donat's Castle. 



Porlock or Huston Point. 



Leemouth. 



Hangman Hill. 



XKIL Experiments and Observations on the Matter of Cancer, and on the 

 Serial Fluids extricated from Animal Substances by Distillation and Putrefac- 

 tion ; together with some Remarks on Sulphureous Hepatic Air. By Adair 

 Crawford* M. D., F. R. S. p. 391 . 



There are several varieties in the colour and consistence of the matter dis- 

 charged by cancerous ulcers. It is in some cases of a pale ash colour; in others, 

 it has a reddish cast ; and in many instances it has more or less of a brown tino-e, 

 sometimes approaching nearly to black. Its consistence is for the most part thin ; 

 but in the cancerous, as well as in the other malignant ulcers, we frequently 

 meet with a white sordes, which closely adheres to the surface of the sore, and 

 which appears to be scarcely miscible with water. In the same patient the ap- 

 pearance of the discharge is frequently varied by internal remedies, or by external 

 applications ; but if we except the temporary variations produced by accidental 

 circumstances, the cancerous ulcer is, in its advanced stage, very generally ac- 



* Author of a very ingenious philosophical treatise on Animal Heat. 



