ADVERTISEMENT. 
T HE Reader is defired to correft the Title of the XII tfl 
Paper of the lad Number of thefe T ranfaftions in th$ 
following manner : 
A Letter from Richard Brocklesby M. D. 0//J F.R.S. to the 
Prefident, concerning the Indian Poifon, fent over by Don 
Antonio De Ulloa of Seville* F. R. S. and mentioned by 
M. de la Condamine, of the Royal Academy of Sciences 
at Paris, in\his late Account of the River of the Amazons 
in South America* 
He is alfo defired in the lame Paper, to read towards the 
Bottom of the firft Page, inftead of Mr. Juan Antonio de 
Loa , Bon Antonio de Ulloa . This Gentleman was one of 
thofe fent by the King of Spain to attend and afiift the 
French Aftronomers of the Royal Academy of Sciences , in 
their late Meafure of a Degree of Latitude near the Equator. 
He was taken Prifoner at Cape Breton in his Return home, 
and brought into England , where his Papers all relating to 
the Mealure of the Degree, and other Aftronomical and 
Philofophical Obfervations, were by the Favour of the 
Lords Commilfioners of the Admiralty reftored to 
him, to be publifhed in his own Country. An Ab- 
ftrad of the fame was however by their Lordfhip’s 
Leave communicated to the Royal Society, by their Frefident , 
who was entrufted with the Perufal of the fame : And the 
Author himfelf, who is a Gentleman of great Merit, was 
foon after unanimouily chofen a Fellow of the Society. 
Some time after his Return he procured the above-men- 
tioned Specimen of this Indian Poifon, which he fent over 
together, with fome Books, as a Prefent to his Friend the 
Frefident of the Society . 
