CONTENTS. 
NATURAL HISTORY. 
- 
On'the Natureofthe Diamond . ‘« : 2, 099 | 
On the Action of Nitre upon Gold and Platina ; «+ 391 
Olservations and Experiments made to determine the poisonous ‘Qualities © 
of Axote : ‘ < p - 393 
Proceedings of the African Association . . +, 399 
U3 ERO LP R OIE. Gyr as 
List of Patents granted during the, Year 1797, ‘for various Inventions 406 
Receipt for preventing Smut-Balls or Bunts amongst IVheat « 409 
First Report of the Cotamittee on Waste Lands, ee. . 410 
ANTIQUITIES. 
Order of the House of Commons, made in the Year 1641, i rating every 
Man according to his Estate for the. King's Use - 418 
Account of London-Bridge 3 i ‘ ilid. 
fccount of the Pyramid of Caius Cestius at Rome Sab Se rie. 
Roman Method of computing Time P 2 é ibid. 
MISCELLANEOUS ESSAYS. 
Essay on the Means of confining Heat, and directing its Operations» 423 
On the Danger of using Vessels of Lead, Copper, or Brass, in Dairies 429 
On the ancicnt and eiaern Navigation of India F « 44d 
Disquisition on the Phrase, ** The Enlightened Public.” ; «- 435 
Count Alfieri's Dedtcation of his Tragedy of: Junius Brutus to General 
Wa: ashington , § i" 437° 
The like of Agis to Charles’ the First, King of England P . ibid. 
Moderm Platonism ‘ ‘ . 438 
Proceedings of the Vhemic, or Pestphalian Coure © 440 
Soup for the Poor ey: 4 . a - 441 
