Index. 



too 



4.>) 



PAGE. 



Schonbein, on antozone. . ..405 — 414 



on ozone . . . . 365 — 369 



ozone-test of 212—216 



Schorl 65, 66 



Schorlomite 65 — 74, 142 



Semeline 65 



Serpentine 2, 6, 21, 28, 135 



Sharp's Rifle 170—176 



Shepardite 69 



Siderite 3, 7—11, 15, 28, 135 



Silica, functions of in the soil . . 33 

 Silicates, action of organic acids 



upon T..6, 20, 25, 23 



comparative solubility of, 



in acids 21 



Silico-propionic acid 33 



Silicotitanates 71 



Silver 5, 25, 28 



Silver, as an ozone-test, 208, 209, 212 

 Sizes of red blood-corpuscles, 



27G— 282 



Smaltite 4, 18, 24, 28, 155, 157 



Smithsonite 3, 7—11, 23 



Solubility of metals in organic 



acids 16 



Souffriere Mountain 148, 151 



Sphrerosiderite 58 



Sphene 56, 65—75 



South Jo2,'o-ins, section at 249 



Spanish Model Rifle 166—176 



Sphalerite 4, 17, 18, 24, 28, 154 



157, 159 

 Spodumene, action of organic 



acids upon 6, 26, 28 



alterations of .. .318, 324, 327 

 340, 346—354 



analyses of 321, 322, 323 



constitution of. .324, 325, 326 



localities for 318, 319 



microscopical characters 



of 326, 327 



para genesis of 350, 351 



Springfield'Rifle 166 



Staurolitic schist 318 



Steel, titanium 62, 63 



"Stellate" forms of blood-cor- 

 puscles 267, 283, 312 



Stibnite. . .4, 17, 18, 24, 28, 154, 157 



Stilbite 6, 21, 28 



Stone implements in Japan. ..35, 38 



Stromatopora Limestone 124 



Strontianite 4, 7—11, 15, 28 



Structure of blood-corpuscles, 



265—314 



Succinic acid 33 



Succinite 33 



PA 



GE. 



216 

 157 



, 28 



Sulphide of lead, as an ozone 



test 208—: 



Sulphides, action of iodine 



upon 153- 



action of organic acids 



upon 4, 17 



distinction of, by means 



of citric acid 18 



Sulphuric acid, 30, 153, 197, 368, 370 

 Sulphurous acid, action of upon 

 flowers 217, 218, 219 



Talc ' 6, 21, '26—28 



Tantra marshes 254 



Tartaric acid.. 1—24, 29, 31, 32, 157 



Tentaculite Limestone 123, 124 



Testing guns under water. .164 — 176 



Tests for Ozone 204—216 



Tetrahedrite. .4, 18, 24, 28, 155, 157 

 Thallous hydrate, as an ozone- 

 test 208—210, 213—216 



Thierschite 32 



" Thorn-apple " forms, in blood- 

 corpuscles 266, 267, 234, 312 



Tin 5, 25, 28 



Titanates 53 — 76 



Titanic acid 53—61 



Titanioferrite 67, 75 



Titanite 65 — 75 



Titanium 53—76 



Titanotriamine 61 



Tourmaline, 6, 21, 26, 28, 338, 345 

 350, 351, 352 



Trap-sheets of the Trias 229 



241—246 

 Trias of Eastern North Ame- 

 rica 220, 254 



Triphylite 326, 352, 354 



Tscheffkinite. . 65, 67, 68, 73, 74, 75 



i 



Uintah Mountains 248 



Ullmannite. . .4, 18, 24, 28, 155, 157 



Ulmic acid 31 



Uran-ochre 326, 354 



Uraninite, 5, 19, 25-28, 135, 136, 142 



U. S. Army Rifle 166—176 



U. S. Model Rifle 165—176 



Vacuole, in blood-corpuscles. . . 269 



Vanadates 134—142 



Vanadic acid 135 — 142 



Vanadinite 134—142 



Vanadiolite 140 



Vanadite 138 



Vanadium 133—143 



Variegated Conglomerate. .231 — 240 



