WOODCUTS IN THE TEXT
| Partial eclipse of the moon | Initial letter | [1] |
| A boy illustrating the phases of the moon | [6] | |
| Course of the moon in the heavens | [8] | |
| Chart of the moon | [10] | |
| Face of the full moon | [11] | |
| Tycho and his surroundings | (from a photograph by De la Rue) | [13] |
| Plan of the peak of Teneriffe | [15] | |
| The crater Copernicus | [17] | |
| The lunar Appennines | (from a photograph by M.M. Henri) | [19] |
| The crater Plato seen soon after sunrise | [20] | |
| Diagram of total eclipse of the moon | [23] | |
| Boy and microscope | Initial letter | [27] |
| Eye-ball seen from the front | [30] | |
| Section of an eye looking at a pencil | [31] | |
| Image of a candle-flame thrown on paper by a lens | [33] | |
| Arrow magnified by a convex lens | [35] | |
| Student's microscope | [36] | |
| Skeleton of a microscope | [37] | |
| Fossil diatoms seen under the microscope | [39] | |
| An astronomical telescope | [41] | |
| Two skeletons of telescopes | [44] | |
| The photographic camera | [47] | |
| Kirchhoff's spectroscope | [51] | |
| Passage of rays through the spectroscope | [52] | |
| A group of fairy-ring mushrooms | Initial letter | [55] |
| Three forms of vegetable mould magnified | [61] | |
| Mucor Mucedo greatly magnified | [63] | |
| Yeast cells growing under the microscope | [65] | |
| Early stages of the mushroom | [67] | |
| Later stages of the mushroom | [68] | |
| Microscopic structure of mushroom gills | [69] | |
| A group of cup lichens | Initial letter | [75] |
| Examples of lichens from life | [77] | |
| Singe-celled plants growing | [78] | |
| Sections of lichens | [81] | |
| Fructification of a lichen | [83] | |
| A stem of feathery moss from life | [85] | |
| Moss-leaf magnified | [87] | |
| Polytrichum Commune, a large hair-moss | [88] | |
| Fructification of a moss | [89] | |
| Sphagnum moss from a Devonshire bog | [93] | |
| Surface of a lava-flow | Initial letter | [96] |
| Vesuvius as seen in eruption | [97] | |
| Top of Vesuvius in 1864 | [100] | |
| Diagrammatic section of an active volcano | [105] | |
| Section of a lava-flow | [108] | |
| Volcanic glass with crystallites and microliths | [109] | |
| Volcanic glass with well-developed microliths | [110] | |
| A piece of Dartmoor granite | [112] | |
| Volcanic glass showing large included crystals | [115] | |
| A total eclipse of the sun | Initial letter | [117] |
| Face of the sun projected on a piece of cardboard | [120] | |
| Photograph of the sun's face, taken by Mr. Selwyn | (Secchi, Le Soleil) | [122] |
| Total eclipse of the sun, showing corona and prominences | (Guillemin, Le Ciel) | [124] |
| Kirchhoff's experiment on the dark sodium line | [128] | |
| The spectroscope attached to the telescope for solar work | [132] | |
| Sun-spectrum and prominence spectrum compared | [134] | |
| Red prominences, as drawn by Mr. Lockyer 1869 | [136] | |
| A quiet sun-spot | [140] | |
| A tumultuous sun-spot | [141] | |
| A star-cluster | Initial letter | [145] |
| Some constellations seen on looking south in March from six to nine o'clock | [148] | |
| The chief stars of Orion, with Aldebaran | [149] | |
| The trapezium θ Orionis | [150] | |
| Spectrum of Orion's nebula and sun-spectrum compared | [151] | |
| Some constellations seen on looking north in March from six to nine o'clock | [156] | |
| The Great Bear, showing position of the binary star | [157] | |
| Drifting of the seven stars of Charles's Wain | [159] | |
| Cassiopeia and the heavenly bodies near | [162] | |
| ε Lyræ, a double-binary star | [166] | |
| A seaside pool | Initial letter | [172] |
| A group of seaweeds (natural size) | [175] | |
| ULVA LACTUCA, a piece greatly magnified | [176] | |
| Seaweeds, magnified to show fruits | [177] | |
| A Coralline and Sertularian compared | [179] | |
| Sertularia Tenella hanging in water | [180] | |
| Thuricolla Folliculata and Chilomonas Amygdalum | [182] | |
| A group of living diatoms | [184] | |
| A diatom growing | [185] | |
| Cydippe Pileus, animal and structure | [187] | |
| The Sea-mat, Flustra Foliacea | [191] | |
| Diagram of the Flustra animal | [192] | |
| Dartmoor ponies | Initial letter | [195] |
| Equus Hemionus, the horse-ass of Tartary and Tibet | [201] | |
| Przevalsky's wild horse | [202] | |
| skeleton of an animal of the horse-tribe | [206] | |
| Palæolithic man chipping flint tools | Initial letter | [209] |
| Scene in Palæolithic times | [212] | |
| Palæolithic relics—needle, tooth, implement | [213] | |
| Mammoth engraved on ivory | [216] | |
| Neolithic implements—hatchet, celt, spindle whorl | [219] | |
| A burial in Neolithic times | [221] | |
| British relics—coin, bronze celt, and bracelet | [223] | |
| Britons taking refuge in the cave | [224] |
THROUGH MAGIC GLASSES
CHAPTER I
THE MAGICIAN'S CHAMBER BY MOONLIGHT
he full moon was shining in all its splendour one lovely August night, as the magician sat in his turret chamber bathed in her pure white beams, which streamed upon him through the open shutter in the wooden dome above. It is true a faint gleam of warmer light shone from below through the open door, for this room was but an offshoot at the top of the building, and on looking down the turret stairs a lecture-room might be seen below where a bright light was burning. Very little, however, of this warm glow reached the magician, and the implements of his art around him looked like weird gaunt skeletons as they cast their long shadows across the floor in the moonlight.