46^ Additional Notes. 



Egyptians were not acquainted with the motion of the fi)icd 

 stars in longitude, and that Hipparchus was the first who 

 discovered it. Hipparchus, the astronomer here alluded to, 

 was a native of Nicea, and flourished about the year 1 29 

 before Jesus Cfirist. Professor Testa remarks also, that 

 the Zodiac of Dindora is found in a temple of Grecian archi- 

 tecture, which bears the name of Tiberius; that this temple 

 not being two thousand years old, the Zodiac discovered in 

 it cannot have existed above four thousand ; that in these 

 Zodiacs is seen the sign of Libra, a constellation absolutely 

 unknown to the ancient Egyptians. It appears, therefore, 

 that a certain class of philosophers will not derive from the dis- 

 covery of these Zodiacs that advantage which they expected. 



Invention of the Quadrant by Godfrey, p. 71. 



It is asserted, in the above-mentioned page, that the cele- 

 brated instrument called the Quadrant, whicii bears the name 

 of Mr. Hadley, and which is generally ascribed to him 

 as the inventor, was really invented by Mr. Thomas God- 

 frey, of Philadelphia. It will be proper, in this place, to 

 give the reader some account of Mr. Godfrey, and of the 

 evidence on which the above assertion was made. 



The fullest and most satisfactory information on both these 

 points, which the author has been able to obtain, is presented 

 ip the following letters, extracted from the American Maga- 

 zine^ for the months of July and August, 1758. Two of 

 these letters are written by James Logan, Esq. the distin- 

 guished classic scholar and botanist whose name has been 

 mentioned in several parts of this work. For furnishing him 

 'with accurate copies of these documents, the author is indebted 

 to his friend Ebenezer Hazard, Esq. of Philadelphia, a 

 gentleman who has been long distinguished for his researches 

 in various departments of American history, and who has pro- 

 bably amassed a larger store of curious relics and facts relat- 

 ing to this extensive subject, than any other individual in the 

 United States. 



From the American Magazine for July, 175S, p. 475, 



To the Proprietors, S(c. 

 Gentlemen, 

 Al! civilized states have thought it their honour to have 

 men of great ingenuity born or bred among them. Many 



