The home tutor, a treasury of self-culture1862 |
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Page viii
... the Refractive Power with other Qualities - Total Reflec- tion - Rays on Plane Surfaces - The Prism - Action of the Prism on a Ray - The Multiplying Glass . 132 · • PAGE CHAPTER XXXVIII . THE ACTION OF LENSES . - viii CONTENTS .
... the Refractive Power with other Qualities - Total Reflec- tion - Rays on Plane Surfaces - The Prism - Action of the Prism on a Ray - The Multiplying Glass . 132 · • PAGE CHAPTER XXXVIII . THE ACTION OF LENSES . - viii CONTENTS .
Page ix
... Rays - They pre - exist in White Light - Theory of the Different Re- frangibility of the Rays of Light- Different Dispersive Powers - Irra- tionality of Dispersion - Illuminat- ing Effects - The Fixed Lines - Ca- lorific Effects ...
... Rays - They pre - exist in White Light - Theory of the Different Re- frangibility of the Rays of Light- Different Dispersive Powers - Irra- tionality of Dispersion - Illuminat- ing Effects - The Fixed Lines - Ca- lorific Effects ...
Page 110
... ray of undulation we mean a line drawn from the origin of a wave in the direction in which any given point of it is ... rays those expressing the path of the undulating points after their recoil . The angle of incidence is the angle ...
... ray of undulation we mean a line drawn from the origin of a wave in the direction in which any given point of it is ... rays those expressing the path of the undulating points after their recoil . The angle of incidence is the angle ...
Page 111
... rays diverging from Fig . 194 , its focal point , a , will , after reflection , pass in parallel lines , bd , dcd , ed . Or if the rays impinge in paral- lel lines , they will , after reflection , con- verge to the focus . When ...
... rays diverging from Fig . 194 , its focal point , a , will , after reflection , pass in parallel lines , bd , dcd , ed . Or if the rays impinge in paral- lel lines , they will , after reflection , con- verge to the focus . When ...
Page 121
... rays of sound issue from it , as seen in Fig . 207 , in a parallel direction . Its effi- ciency depends on its length . It is stated that through such an instrument , from eighteen to twenty - four feet long , a man's voice can be heard ...
... rays of sound issue from it , as seen in Fig . 207 , in a parallel direction . Its effi- ciency depends on its length . It is stated that through such an instrument , from eighteen to twenty - four feet long , a man's voice can be heard ...
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action angle animals annelid aperture appearance astronomer axis ball beautiful becomes body called carbonic acid cause centre of gravity CHAPTER clay clouds coal Coal measures colour consists constellation convex lens coral creatures Crustacea deposited descend diameter direction distance earth effect elastic equal exist fact fall feet force fossil give glass globe gneiss heat heavens horizon igneous rocks inches inclined plane length lens lever light limestone liquid lower mass matter mercury mirror moon motion mountain move nature object observed Oolitic organic origin particles pass peculiar pendulum phenomena plane plants polypes portion position present pressure produced quicksilver races rays reflected refraction rise rocks round sand sandstone schist seen shells side Silurian solid space species specific gravity stars strata structure substances supposed surface temperature tion tube vapour vegetable velocity vibrations waves weight wind zoophytes
Popular passages
Page 302 - Since once I sat upon a promontory, And heard a mermaid, on a dolphin's back, Uttering such dulcet and harmonious breath. That the rude sea grew civil at her song ; And certain stars shot madly from their spheres, To hear the sea-maid's music.
Page 476 - Come on therefore, let us enjoy the good things that are present : and let us speedily use the creatures like as in youth. Let us fill ourselves with costly wine and ointments : and let no flower of the spring pass by us. Let us crown ourselves with rosebuds before they be withered.
Page 461 - He giveth snow like wool : He scattereth the hoarfrost like ashes. He casteth forth His ice like morsels : Who can stand before His cold? He sendeth out His word, and melteth them : He causeth His wind to blow, and the waters flow.
Page 427 - Now through the passing cloud she seems to stoop, Now up the pure cerulean rides sublime. Wide the pale deluge floats, and streaming mild O'er the sky'd mountain to the shadowy vale, While rocks and floods reflect the quivering gleam, The whole air whitens with a boundless tide Of silver radiance, trembling round the world.
Page 471 - Sits on the horizon round a settled gloom : Not such as wintry storms on mortals shed, Oppressing life ; but lovely, gentle, kind, And full of every hope, and every joy ; The wish of Nature.
Page 439 - What if the sun Be centre to the world, and other stars, By his attractive virtue and their own Incited, dance about him various rounds...
Page 476 - On the charmed eye, the exulting florist marks With secret pride the wonders of his hand. No gradual bloom is wanting — from the bud First-born of Spring to Summer's musky tribes; Nor hyacinths, of purest virgin white, Low bent a'nd blushing inward ; nor jonquils, Of potent fragrance; nor narcissus fair, As o'er the fabled fountain hanging still; Nor broad carnations, nor gay-spotted pinks; Nor, showered from every bush, the damask-rose: Infinite numbers, delicacies, smells.
Page 457 - All Nature feels the renovating force Of Winter, only to the thoughtless eye In ruin seen. The frost-concocted glebe Draws in abundant vegetable soul, And gathers vigour for the coming year.
Page 477 - Now the bright morning star, day's harbinger, Comes dancing from the east, and leads with her The flowery May, who from her green lap throws The yellow cowslip, and the pale primrose. Hail, bounteous May, that dost inspire Mirth, and youth, and warm desire ; Woods and groves are of thy dressing, Hill and dale doth boast thy blessing. Thus we salute thee with our early song, And welcome thee, and wish thee long.
Page 476 - Then comes the tulip race, where beauty plays Her idle freaks ; from family diffused To family, as flies the father-dust. The varied colours run ; and while they break On the charm'd eye, th' exulting florist marks, With secret pride, the wonders of his hand.