24 MICROSCOPES 



118. Cuffs Double Constructed Microscope and Stand. ? 1761. 

 In pyramidal mahogany case. 



(By) Dollond, London. Christ Church. 



Inscription : 



D.D. Joannes Tunnadine LL.D (? 1768-71). 



(With MS. Catalogue of 6 ivory slides, each with four objects.) 



119. Cuffs Double Constructed Microscope and Stand with Oblique 



Mirror for Solar Illumination. 1746-71. 



Christ Church. 

 (By) G. Adams at No. 60 Fleet Street, London. 



120. Cuffs Model Microscope. 17 



Nairne London Inv 1 . et Fecit. 



Oriel College. 



121. Compound Microscope on Tripod Stand. 



By Jupp. With Cuff stage. 



Clarendon Laboratory. 



ADDENDA 



53 a. Persian Astrolabe. A. H. 374 = A. D. 984. 



The earliest dated Astrolabe known. 

 Brass : diameter 5^ inches, thickness | inch. 

 The inscription means : 



' In the Name of God, and by the help of God, 



In prosperity, and wealth and good fortune, and the happiness of this 

 world and the next and eternity.' 



This is the Astrolabe of Ahmad and Mahmud, the sons of Ibrahim, 

 the Astrolabist of Isfahan. It is made for thirty-seven stars, contains 

 three plates, and has the latitudes and longitudes of thirty-two cities 

 engraved in the mother. 



53 b. Moorish Astrolabe. A. H. 460 = A. D. 1067. 



Brass : diameter 6| inches, thickness ^ inch. 

 The inscription is : 



' Made by Ibrahim Ibn Said Assohli, in the city of Toledo, in Shoual, of 

 the year 460.' 



It is made for twenty-eigh t stars, and contains six plates. 



