[ 54 ' 3 
8 . The double Horn mentioned above, belong- 
ing to Sir Hans Sloane : Whether they 
crojfed each other on the Animal , is uncer- 
tain : It is moft likely they did not , but that 
by drying they were crojfed by the Corruga- 
tion of the Skin that joins them together : 
However , I have drawn them as they ap- 
peared to me • The ftrait Horn is 25 Inches 
long , the curved one fomewhat fhorter , 
arid the Two ‘Diameters of the BaJ'es 1 3 
Inches. 
9 . The concave Bottoms of the above double 
Horns, as they adhere to the fame Biece of 
Skin. 
IX. An Account of a Comparifin lately made 
by feme Gentlemen of the Royal Society, 
of the Standard of a Yard, and the fever al 
Weights lately made for their Ufe • with 
the Original Standards of Meafures and 
Weights in the Exchequer, and feme others 
kept for public Ufe , at Guild-hall, Found- 
ers-hall, the Tower, &c. 
Read jane T XT H E N there were fome time fince 
i< 5 - 1743- YV prepared by Order of the Royal 
Society, to be kept in their Archives here, and alfo 
in thofe of the Royal Academy of Sciences at Baris , 
Standards of the Tar d Me afire, as alfo of the Troy 
and Averdupois Weights ; an Account of which was 
fome 
