38» 



INDEX. 



Stones, pric'ious. On, 193 Fal/is's bold experiments wItTi 



Stones, General analysis of, 364 the plnj^ue, 288 



Stones from the clouds, 228; a Valve-safety. A new, 162, 



shower of, 271 164 



Sulphati of soda. New method FegetalUs, Experiments on, 30, 



of preparing, ^^ 63,146,293,322 



Vegetation. On, 319 



Taimn. To ascertain the pre- ^mcf on friction, 47,112; let- 



sence of, 64 ter to, 120 



Tanning. Davy on, 58, 63, 212, Volatile alkali, a cure for bites 



293 ; a memoir on, 140 of snakes, 125,128 



Tatham on sharks, 313 



Teeth, human. Analized, 313 

 Tener'iffe. On the peak of, 3 1 ; 

 height of peak, 37 ; Tilesius's 

 account of, 286 



Tennant's experiments on dia- 

 mond, 197 

 Terra japonic a. Experiments on, 

 212 

 Thornton on pneumatic medi- 

 cine, 171, 234, 360 

 Tiksius's account of Teneriffe, 

 2 86 

 Tillei's experiments on vegeta- 

 tion. 

 Tin, an ingredient in antienc 

 mirrors, 293 

 Titanium. Regulus of, gj 

 Topaz. On the, 202 

 Trees, diseased. To tare, 284 

 Tungsten. Regulus of, 95 



Voyage of diseovtry, Tlie Rus- 

 sian, 286 

 Vulture of Pondlcherry, 359 



Waller on pneumatic medicine, 

 360 

 Wattr, a red-coloured, examined, 

 243 

 Wax, a vegetable product, not 

 made by bees, 29 



WoUaston's improvement in spec- 

 tacle glasses, 327 

 Woods on the Franklinian theory 

 of electricity, 97 

 p'9 JVof. Geological remarks by, 



374 



Woolfs lo'rler described, 40 j 



steam-valve, 164 



JVrtobt on vegetation, 3 19 



J'arn, a prize question, 93 



Telloiv. To dye, 324 



Urine of horses. Experiments 

 on, 151 



Zamheccari^s aerial voyage, 1 88 

 Vaccination, a preventive of the Zerconia. Anai}zed, 237 



plague, 94 ; does not prevent Zoology, j 7 



--TsH.tli^plague, 2 83 





EKD Of the seventeenth volume. 



'^-^iiJi'^-' 



ERRATA. 



In scJmc copies the pfares given in No. 67 are marked V. and VI.; but 

 they ought to bt; VI. and VH. 



Taylor, Printer, Black-Horse-Courc, 

 Fleet-Street. 



