40 GENERAL INDEX. 



Pag<? 



System, solar, account oi . PREL. TREAT. 1315,40 



Systems of pulleys, concerning . . . . MECHANICS, t. ii. 3436 



of coloured rings produced by crystalline refractions POLAR. OF LIGHT 18 32 



of the apophyllite .... 32 36 



.. produced by common light . . 28 



of rings in leucocyclite . . . . . . 34 



Tabasheer, remarkable properties of . . . . . OPTIC* . . 62 



Table of the boiling points of different liquids . , . HEAT . . .50 



of changes of different substance* by heat . . . ... 20 



for calculating the contents of pipes .... HYDRAULICS . . 22 



of colours of thin plates of water on. glass . . . OPTICS . . 35 



of comparative capacities for caloric in elastic fluids . HEAT . . .38 



expansions ...... . . . 11 



measures of particles and fibres . . OPTICS . .37 



elastic force of different vapours . . . HEAT . . 51 



friction of different kinds of wood . . MECHANICS, t. iii. . 30 



scales of thermometers .... HEAT . . 17 



temperature of the prismatic rays . . OPTICS . . .29 



of the conducting powers of caloric of different kinds of wood HEAT . . 22 



of the cooling of heated bodies , . . . . .32 



of the descent of falling bodies . MECHANICS, t. i. . 11 



of the dispersive powers of certain bodies respecting light OPTICS . . .25 



of the linear dilation of solids by heat ... HEAT . . 



of the elasticity of vapour and steam ^ . . .48 



of experiments on friction and rigidity of cordage . . MECHANICS, t. iii. 26 30 



of expansion of air by heat . HEAT . . .13 



of liquids by heat .... . . . 10 



of frigorific mixtures ...... . . .60 



of freezing temperature of various liquids . . . ... 62 



of latent heat of vapours ^ - ., ~ . . .48 



of light lost by reflection . . . OPTICS . . 68 



of the radiating heat of different substances in atmospheric air HEAT . . .32 



of the refractive of power of different bodies . . OPTICS . . 4 



.. .. gases . . ... 6 



of specific gravities .... * . HYDROSTATICS . 19 21 



heat of metals ...... HEAT . . 39 



of crystals having one axis of double refraction fc POLAR. OF LIGHT . 3 



of angle of polarisation of different substances . . . . 9 



of crystals with positive aud negative systems of coloured rings . 21 22 



of minerals and crystals, with character of, their axes . . . 26 



of the polarising intensities of different crystals . . . 31 



of the angle of polarisation of different substances . . ., . 9 



Tangents, law of the, explained , , , . , . . 10 



Tapioca-tree, its great value as food , , . . PRELIMINARY TREAT, 33 



Taylor's saw-mill, description of . , . . MECHANICS, t. ii. . 27 



Teeth of wheel-work, proper form of ,... . 28 



Telescope^ description and principles of . OPTICS . . .14 



astronomical .,.. . . 15 



achromatic, Dollond's . ... . . PKEL. TREAT. 23. OPTICS 27 



Blair's ^ * . . . OPTICS . . 28 



. . Barlow's improvement, . . . . . .28 



Cassograinean ,. , . . . . . 20 



Gregorian .,,, k . . . .20 



reflecting and refracting^ difference of light in . . . 68 



. observations on , . . . . . 



. . proper form of the mirrors qf . . 



Temperature, modes of lowering . . . . , HE' 



of freezing point of various mixtures . . . 



Tttsellated Apophyllite, remarkable formation of . . . 

 Thaumotrope, an ingenious toy described . . . 

 Theory of accidental colours ..... 

 of rigidity . . . 



(Biot's) of the cause of the. colours of polarised ' 

 of rectangular axes , , , 

 Thermometer, principles of ... 



air . . ^ * 

 . % experiments with ,^ ^ 



