iir SCIENCE, vol.. XVII.] 



[ll.l.rSTIIAIING ritOF. MOlMdSO.v's I'APKlt. 



20 22 21 



Values of sill A sin e, for dilfereut moiitlis of the year. Liit. 290 5' S 



Vaha-s of cos A cos S cos /' for ilifffioiit lioiiis of the day. Lut. 290 5' 



To face p- ^■■^S.-] 



