ADVERTISEMENT. 
Since the appearance of the Papers relating to the Paramatta Observations, 
which were published at the request and at the expense of the Colonial Office, 
and appended to the Philosophical Transactions, it has appeared that some of 
the Observations communicated by Mr. Rumker were made by that gentleman 
while he was the paid assistant of Sir Thomas Brisbane, at an Observatory 
founded by Sir Thomas Brisbane, and with his instruments ; and that some 
others were actually made by Sir Thomas Brisbane himself. 
