FIR. * 



COMMON THINGS. 



THE ALMANACK. 



CHAPTEE II. 



33. Paschal moon sometimes gives a different Easter from real moon. 34. 

 Occasion of public controversies. 35. Professor De Morgan points out 

 error in Act of Parliament. 36. Other moveable Feasts. 37. Extract 

 from De Morgan's Book of Almanacks. 38. Whit-Sunday. 39. The 

 Indiction. 40. Solar Cycle. 41. To find the year of the current solar 

 cycle. 42. Dominical or Sunday Letter. 43. How affected by Leap- 

 year. 44. Sunday Letter of the year 1 A.D. 45. To find Sunday 

 Letter for any year. 46. Eras. 47. Julian Period. 48. Its com- 

 mencement determined. 49. Its use in chronology. 50. Contents of 

 the Calendar. 51. Aspect of the Heavens. 52. Times of rising and 

 LARDNER'S MUSEUM OP SCIENCE. c 17 



No. 81. 



