INDEX. 277 



s 



Science, natural . . . . .21 



Synthesis, ..... 



Spectrum, solar . . . . .33 



Salts, properties of . . . . 56 



Salts, acid . . . . . .* 56 



Salts, neutral ' . * * * . . 56 



Salts, basic . * . " . "*" . . . 56 



Salts, double . . . 56 



Salts, deliquescent, , . . . .57 



Salts, effervescent, .... 56 



Starch, ...... 58 



Sugar, ...... 29 



Stratification, . . . . .74 



Seam, . . . . 75 



Sulphur, . . . .66 



Syenite, ...... 83 



Serpentine, . ' \ . * , . . 84 



Slate, talcose, , , . . . . 87 



Species defined, < .V . . .94 



Stamens, , . . . . 97 



Style, ,.'" . * >. 5 . . 99 



Stigma, . . * ' . . . 99 



Seed, , 4 * .101 



Spongioles, # . . . 103 



Shrubs, . . . . . .106 



Stem, exogenous . . . . . 107 



Sap, . . . , - . . .108 



Scape, . . *; ; . % * , "-. _ 119 



Seeds, longevity of . . . v - .122 



Snow line, . . . 128 



Snow lines, table of . * * + ' . 128 



Snow, . . . v v- 138 



Snow crystals, system of ?.' .v '* . 139 



Simoon, . . .*. . ; * 4 . 145 



Sirocco, . ; . * .'^ . 145 



Shooting stars, . . V ./ . 149 



Silicon, . ./> . .-.* . .157 



Sodium, . . . . . 160 



Stalactites, . . . . . .165 



Stalagmites, . . * V" ; * 165 



