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He went, he lectured, he was generously, and even enthusiastically received by the warm-hearted Australian Colonists in South Australia, Victoria, and New South Wales. He has returned with refreshed mental and bodily vigour.

But, meantime, a well-known correspondent of this magazine, Mr. J. W. Buck, B.Sc., &c., was kind enough to act as Editorial locumtenens, and he performed his work so well that the Editor feels he could not honestly write this Preface to the Annual Volume without recognising it.

The mere fact that we are now chronicling our “Coming of Age,” reminds us of the almost numberless competitors for public favour which “twenty-one ” years of active Scientific and Literary life in England must necessarily develop: Consequently, it is a proud thing to say, on the part of the Editor, that our Magazine was never so popular, never so much appreciated, never so widely circulated all over the world—in all the eventful years of its history—as it is at the time of publication of its Twenty-first Volume.

Nothing shall be wanting on the part of the Editor to enlarge the sphere, and intensify the operations of this Magazine for the future. His office is smoothed by the generous patience and kindness of his multitudinous Correspondents, who are aware that all their communications cannot appear in the next number—as well as by those patient students who understand the difficulty of answering hard questions in a moment.

We commence a New Era with our next volume. We are taking out a new Lease of Life. The last twenty-one years has seen a good deal of the effect of natural selection. Hosts of magazines with a similar scope to ours have appeared-and dis-appeared. We recognise the vital fact that for a magazine to live, it must prove itself worthy of life!

Our intentions for the next volume are that our literary manhood shall be fully maintained. Will our numerous readers, all over the world, help us to carry out our intentions, by also aiding in the circulation of SCIENCE-GOSSIP ?

EV YOR

IBRAH

LIST OF ILLUSTRATIONS.

Acrodus Anningiæ, JAW OF, 109
Gleichenia dichotoma, 105

Orobanche rapum, 157
Acrodus minimus, Tooth of, 108
Grape hyacinths, 244-5

Orthacanthus, section of spine, 156
Acrodus nobilis, Tooth of, &c., 108 Gyrocanthus, Spine of, 271
Acrodus, section of spine, 108

Palæospinax priscus, TEETH AND DO SAL
Adiantum caudatum, 133
Haplographium bicolor, chlorocephalum,

SPINES OF, 156. Adiantum flabellulatum, 133

tenuissimum, 197

Parexus incuruus, Outline of, 271
Ætobatis, Straight teeth of, 270
Helianthus annuus, 204

Pecten quadricostatus, 12
Ætobatis, Arched teeth of, 270
Helir lævipes var. alba, 77

Petalodus acuminatus, 156
Ammonites lautus, 29

Hyalina glabra, cellaria, Draparnaldi, Petalorhynchus psittacinus, Teeth of, 228 Ammonites varicosus, 13

nitidula var. fasciata, 225

Physa acuta and fontinalis, 77
Anemone Halleri, 85
Hybodus, section of spine, 108

Pleuracanthus lævissimus, Spine and Anemone pulsatilla, 84

section of ditto, 156 Anemone montana, 84 Inoceramus conce itricus, 28

Polyrhizodus radicans, Tooth of, 228 Anthomyia meteorica, teeth of, 4

Pristis, Head and rostrum, 228 Anthracosia ovata, 32

Janassa, Dental Series AND SUCCESSION Pristis Hastingsia, Tooth, 228 Aporrhais Parkinsonii, 28

of Teeth, 228

Pteris semi-pinnata and serrulata, 149 Arion, sp., 225

Ptychodus ; Diagram of Dentition, 109 Arum maculatum, papillæ and spadix, 80 Lathræa squamaria, 173

Ptychodus mammillaris, Touth oi, 108 Arum maculatum, plant, corms, starch, Leucochroa candidissima, 225

Ptychodus polygyrus, Touth of, 109 &c., 60, 61

Limnæa glutinosa, monst. intortum; pa- Puccinia Sonchi, 9 Asplenium Japonicum, 149

lustris, monst. turritum peregra var.

Pulex irritans, Development of, 252–3

labiosa; peregra small var.; stagnalis Botys hyalinalis, EMBRYOLOGY OF, 33 var, expansa and var. elegantula; var., Brainea insignis, 220

180

Raia antiqua, DermAL TUBERCLE OF, 228 Broom-rape, 157

Limnæa stagnalis, monst. scalariforme, Royston Crow, 129

77 Cardium Hillanum, 12 Lindsæa flabellulata, 133

Sarcophaga carnaria, TEETH OF, 132 Carica Papaya, Fruit and Leaf, 249 Lindsæa heterophylla, 133

Scatophaga stercoraria, Teeth of, 59
Caricea tigrina, Teeth of, 206
Live cell, Diagrams of, 8

Siphonia pyriformis, 12
Cestracion Philippi, Jaw of, 108
Lygodium Japonicum, 105

Sponge spicules, Fossil 13
Cinnamomum Camphora, 248
Lygodium scandens, 105

Squaloraja polyspondyla, Skeletal parts
Confervæ from the Red Sea, 52
Ctenoptychius pectinatus, 228

MALVERN Hills, DIAGRAMMATIC Sec- Staurosira Harrisonii, var. amphitetras, Cuscuta Epithymum, 173

TION OF, 125

37 Meniscium simplex, 177

Stenog yra decollata, 77
Davallia polypodioides, 221

Merganser, The Red-breasted, 181 Stictodiscus Californicus, 135
Davallia tenuifolia, 220
Mergus Merganser, 181

Stomoxys calcitrans, mouth of, 152
Devonshire, Generalised Section of South Microscope, Direct Illumination, 201 Stomoxys calcitrans, suctorial apparatus
Eastern, 12
Microtome, Freezing, 38

and teeth, 153 Diatoms, Diagram of movements, 188 Microtome, Inexpensive, 8

Strophodus as per

favosus, and reticulatus Dicksonia Barometz, 220 Mistletoe, 173

Teeth of, 108
Diplodus gibbosus, tooth, 156
Muscari comosum, 245

Strophodus medius, Jaw of, 108
Dodder, 173
Muscari botryoides, 245

Sunflower Bracts, stamens, &c., 204 Drepanephorus canaliculatus, Teeth and Muscari racemosum, 244

Surirella clementis, 37 dorsal spines of, 156

Myliobates, Teeth of, 270
Epithemia cistula, 37
Nephrolepis tuberosa, 177

Tooth-wort, 173

Turritella granulata, 12 Exogyra conica, 12

OBSERVATORY TROUGH, 135 FLEA, COMMON; DEVELOPMENT OF, Onchus, Spine of, 271

Valvata piscinalis, 77 152-3 Oracanthus Milleri, 271

Viscum album, 173
Pucella fucorum, Teeth of, 266

Orchis mascula, anthers and pollinium,
Gervillea anceps, 13
Orchis mascula tubers, 124-5

Zygobatis, Teeth of, 271

of, 228

IOI

LIST OF COLOURED PLATES.

Eggs of Parasite of Vulture.
Eggs of Vapourer Moth
Group of Foraminifera
Polysiphonia elongata
Polysiphonia fastigiata
Red Water-Mite

To face page 265

73 193

49

241 Frontispiece.

Seeds of Love-lies-bleeding
Shell of Barnacle, Section
Small Brittle Star-fish.
Spine of Echinus, Section
Toe of Mouse
Tooth of Anteater, Section .

To face page 121

145 169 97 25 217

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