M I S V EM *AN UK § 0 
Abacus, or Colmting Hoard, 
Arch oh' Equilibration _ '. 
Astrolabe . 
Ft a. 5. 
Vernier. 
a 
Fig. tf. 
II am meter . 
|P' hq. ii. 
a D 
Diagonal Barometer . 
Cataea untie Curve. 
/O 
tin. 12. 
Fig. 7. 
A 
Fin. IS. 
Wheel Barometer . 
Printed March i, iBa/i, for Richard PhillipH, Xcir /iruhje direct, Black friars . 
Seri tt alp. ;y Strand. 
