CONTENTS. 
II. Theoretical Astronomy—( Continued.) 
III. 
»*, The references for explanations of the subjects are to the bottom paging of the text 
Principal phases of a transit of Mercury or Venus over the sun’s disk, and 
manner of observing them, 
The total eclipse of the sun, June 4th, V7 88, 
Physical Astronomy, 
Rotation of the earth ; its wulereidal fie coneriteal force ; simple ae 
of the spheroidal hai of the earth ; es variation of ota : 
Compound motion ; 
The Tides, 
parallelogram of forces, 
Refraction ; morning and evening Bae 
The resistance of the Ether, its teaautea. on the eae of comets, 
The sun’s spots, 
Topography of the Micon 
Northwestern quadrant of the moon, 
Northeastern quadrant of the moon, 
Southeastern quadrant of the moon, 
Southwestern quadrant of the moon, 
The planets Mars, Jupiter, Saturn, and Uranus, . : : 
The comets, nebulz, groups of stars, 
The aurora; mock suns and mock moons, 
The Sues stars, 
The antipodes of the earth ; 
system, 
The Calendar in athena, the Gi, een ereeney Russo-Grecian, 
the habitableness of the worlds of the solar 
Jewish, Turkish, and French Republican caldudarst: in particular, 
Astronomical instruments, observatories, 
CONTENTS OF THE PLATES (I. Nos. 1—10) 
MATHEMATICS AND ASTRONOMY. 
TO 
[Including the translation of German words and phrases in the same.] 
PLATES 1—3. 
PAGE 
Figs. 8, 8a. Triangular compasses, 
(19 
Mathematical and Geometrical problems, 1-28. : 
GLOSSARY. # 
Milchstrasse, Milky Way. ‘<6 
PLATE 4. ie 
ce 
Problems in Geodesy or Surveying, and . 
Projection in vertical and _ horizontal Z 
planes, : 8-53 |, 
PLATE 0. ae 
_ Mathematical and Surveying Instruments. es 
Figs. 1, 2. Hair compasses, . RES: we 
«« 3,4. Proportional compasses, . 54 6 
“* 5. Do. with micrometer screw, 54 PS 
“ b, 7. Beam compasses, 04 nS 
9, 10. Elliptograph, 
11-13. Farey’s do., 
14. Excentric compasses, 
15. Pantograph, . 
16. Wallace's eidograph, 
17. Spring compasses, 
18, 19. Parallel ruler, 
20. Lehman’s plane table, 
21. Mayer’s do. 
22. Mayer’s fork and plummet, 
23, 24. Tubular level, 
25. Diopter ruler, 
26. Do. with telescope, 
27. Measuring chain, 
28. Measuring staff, 
1X 
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