PHYSICAL ASTRONOMY. 
13% 
5 Manzinus . . 9991 54 Petavius . . 10,158 
6 Mutus. Fil 525 55 Snellius . 6400 
7 Pentland 56 Borda . . 10,338 
8 Curtius . 20,898 57 Fracastoro . 7988 
9 Pontecoulant 58 Santbech . . 12,894 
10 Hanno 59 Piccolomini . . 14,574 
11 Biela 60 Polybius . . 7278 
12 Hagecius 61 Pons 
13 Nearchus 62 Fermat 
14 Rosenberger 63 Sacrobosco . . 11,295 
15 Blacq . 9762 64 Pontanus 
16 Hommel 65 Azophi . 18,644 
17 Pitiscus 9463 66° Abenezra . 16.254 
18 Baco 11,616 67 Appianus . . 8787 
19 Jacobi . 9684 68 Playfair . 11,290 
20 Zach 11,414 69 Werner . 14,658 
21 Lilius . 9286 70 Ansgarius 
22 Oken 71 Vendelinus 5046 
23 Vega 72 Cook 2959 
24 Steinheil . 11,046 73 Colombo . 7540 
25 Fabricius . 7818 74 Magellan 
26 Nicolai 5874 75 Bohnenberger 
27 Clairaut 76 Beaumont 3 DAIS 
28 Barocius . 11,366 77 Theophilus . 14,939 
29 Maurolicus 13,314 78 Cyrillus 
30 Cuvier. 11,272 79 Katharina . 15,423 
31 Licetus 12,766 80 Kant 
32 Stofler. 10,950 81 Tacitus 9762 
33 Marinus 82 Almanon . 5724 
34 Fraunhofer 83 Geber . . 8112 
35 Furnerius. 10,100 84 Abulfeda . 9600 
36 Stevinus . 10,782 85 Airy 
37 Rheita. 13,464 86 Albategnius . . 138,943 
38 Metius. . . 12:3972 87 Parrot 
39 Reichenbaeh 10,996 88 Kastner 
40 Neander . .) F496 89 Maclaurin 
41 Stiborius . . 13848 90 Langrenus . 11,616 
42 Riceius 91 Messier 5256 
43 Rabbi Levi 92 Goclenius. 4386 
44 Zagut 93 Gutenberg 
45 Lindenau . 11,1386 : 94 Capella 9504 
46 Bisching . 4218 | 95 Isidor . 9005 
47 Buch 96 Torricelli 
48 Gemma Frisius. . 12,796 97 Hypatia . 6904 
49 Poisson 6888 98 Delambre . 14,046 
50 Aliacensis . . 13,624 99 Hyparchus 
51 W. von Humboldt 100 Réaumur 
52 Hekateus 101 Biot 
53 Legendre . . 7627 |! 102 Lacaille 
54. With only a tolerably good telescope, the bright spots of the moon 
can be determined as mountains, by means of their shadows. Their shadow 
lies always on the side opposite to the sun, and is the longer the less the 
altitude of the sun for the mountain. The grey spots were at one time 
137 
