Newton's lantern slide catalogue (1920s)

43, Museum Street, London, W.C.l 223 RN THE PRINCIPLES OF HORTICULTURE. These Slides are photographed from the original drawings made for “ The Principles of Horticulture ” (by Wilfred Mark Webb, F.L.S., &c., 2^. net. Blackie AND Son), and are admirably suited for giving a series of practical lessons in Botany. Plain Slides, 2-'. 3rf. each. 1 Diagram of Privet Leaf, illustrating method of labelling drawings. 2 Cress Seedling grown on blotting paper, to show Root-hairs. 3 Stem-hairs of Groundsel. 4 Chief parts of a_ Green Plant, and their functions. 5 Tissues in stem of Elder. 6 Old Stem of Vegetable Marrow, trans. section. 7 Old Thickened Root of Vegetable Marrow, trans. section. 8 Soft Bast of Vegetable Marrow, long secton to show Sieve Tubes. 9 A Cell showing Vacuoles. 10 The Formation of a Wood Vessel. 11 Fruit of the Sycamore. 12 Half Fruit of Sycamore, opened to show Seed. 13 Contents of a Sycamore Seed. 14 Seed of Scarlet Runner, exterior view. 15 Seed of Scarlet Runner, dissected. 16 Embryo (Young Plant in a Seed). 17 Annotated Diagram, illustrating joint action of Root, Leaf and Stem. 18 Vegetable Marrow, enlarged Unthickened Root, plan of trans. section. 19 Vegetable Marrow, Thickening Root, 1st stage. 20 Vegetable Marrow, Thickening Root, 2nd. stage. 21 Vegetable Marrow, Young Thickened Root, en- larged plan of trans. section. 22 Young Branching Root of Stinging Nettle, as seen under the Microscope by Transmitted light. 23 Flower-stalk of Arum, trans. section. 24 Bud of Brussels Sprout, surface view of cut stem. 25 Bud of Brussels Sprout, long section. 26 Plan, showing arrangement of leaves in four rows, with i circle (90 degs.) between them. 27 Plan, showing arrangement of leaves in two rows, with 5 circle (180 degs.) between them. 28 Plan, showing arrangement of leaves in three rows, with ^ circle (120 degs.) between them. 29 Plan, showing arrangement of leaves in five rows § circle (144 degs.) between them. 30 Leaf of Dock,' dorsi-ventral type. 31 Leaf of Iris, iso-bilateral type. 32 Leaf of Stone-Crop, centric type. 33 Leaf of Clover, Compound, with Palmate Leaf- lets. 34 Pinnate Leaf of Rose, Compound, with Leaf- lets. 35 Leaf and Stem of Cock’s-foot Grass. 36 Leaf of Winter Hellebore, trans. section. 37 Plan of the Base of an Herbaceous^ Cutting. (Pelargonium) as seen in a long section. 38 Mycorhiza (fungal mycelium) on Roots of Rhododendron. 39 Plan of Base of a Woody Cutting (Red Currant) as seen in a long section. 40 Plan of two Stems, with Side Wounds in Process of Healing, as seen in cross-section. 41 Plan of a recently made Graft, as seen in a cross-section. 42 Plan of a Graft, after a year's Growth has been made, as seen in a cross- section. 43 Section of the Root-Graft of Clematis, Wedge- shaped piece of stem, inserted into a length of root. 44 Life History of a Fern. 45 Life History of SHme_ Fungus of Club Root {Plasmodiophora). 46 Life History of Fungus, causing Potato Disease. 47 Mushroom Spores, highly magnified. 48 Diagram of a Flower (Echevaria) and its parts Essential and Non-Essential. 49 F?rtiHzation of Plant Egg, and Growth of Embryo. 50 Seed of Vegetable Marrow, ext. view, showing Micropyle at lower left-hand cor- ner. 51 Seed of Vegetable Marrow, dissected, Seed-coats removed, one side, displaying the Rodicle and one Seed-leaf re- moved from Embryo to show Plumule and veined face of second leaf. 52 Seed Leaf removed from specimen shown in last figure with the Teemen, or inner seed-coat still adhering to it. 53 A Seedling of White Bryony at a stage when the Seed-leaves have not freed themselves from the seed-coats. 54 A Seedling of White Bryony, showing the Plu- mule developing between the. ex- panded seed-leaves. 55 Plumule. Radicle, and the one seed-leaf of the Pea Embryo. 56 Germinating Pea, showing elongated Radicle. and Plumule arising from be- tween seed-leaves. 57 Germinating Pea at later stage, when leaves of Plumule are beginning to expand. 58 Fruit of Ash, dissected to show Seed and Em- bryo within, lying in Endosperm. 59 Grain (fruit) of Wheat, split so as to show Embryo lying in pouch at side of the Endosperm. 60 Classification of True Fruits; succulent and dry. 61 The parts of an Insect (Rose Chafer) The Meta- morphoses of a Moth. 62 Gooseberry Moth. Eggs. 63 Gooseberry Moth. Caterpillar (Larva). 64 Gooseberry Moth. Chrysalis (Pupa). 65 Gooseberry Moth. Moth (Imago). 66 A Red “ Spider ”—one of the Mites. 67 An .Aphis—one of the Rhynchota. 68 A Cabbage White Butterfly—one of the Lepidop- tera. 69 A Cockchafer (Beetle)—one of the Coleoptera. 70 A Daddy Long-legs (Two-winged Fly)—one of the Diptera. 71 A Gooseberry Sawfly—one of the Hymenoptera. 72 Dry Seed of Cress, showing ridge corresponding to Radicle within. 73 Moistened Seed of Cress surrounded by its swollen seed-coat. 74 Cress Seedling showing Radicle, Root-hairs, and seed-leaves, not yet freed from seed-coat, 75 Cress Seedling before lobes of seed-leaves are quite expanded. 76 Cress Seedling, showing Plumule, with seed- leaves expanded ready to work. Note. — W hen ordering Slides the Telegraphic Code Letters should be quoted to avoid mistakes.