[23] Page 162. _Sulpho-indigotic Acid._--A mixture of one part of indigo and fifteen parts of concentrated oil of vitriol. It is bleached on the side at which hydrogen gas is evolved, in consequence of the liberated hydrogen withdrawing oxygen from the indigo, thereby forming a colourless deoxidised indigo. In making the experiment, only enough of the sulpho-indigotic acid must be added to give the water a decided blue colour. [24] Page 164. _Lead Tree._--To make a lead tree, pass a bundle of brass wires through the cork of a bottle, and fasten a plate of zinc round them just as they issue from the cork, so that the zinc may be in contact with every one of the wires. Make the wires to diverge so as to form a sort of cone, and having filled the bottle quite full of a solution of sugar of lead, insert the wires and cork, and seal it down, so as to perfectly exclude the air. In a short time the metallic lead will begin to crystallise around the divergent wires, and form a beautiful object. THE END. BELL AND BAIN, LIMITED, PRINTERS, GLASGOW. Telegraphic Address--BOOKSTORE, LONDON. Telephone No.--3524 CENTRAL. AN ALPHABETICAL CATALOGUE OF BOOKS IN FICTION AND GENERAL LITERATURE PUBLISHED BY CHATTO & WINDUS 111 ST. MARTIN’S LANE CHARING CROSS LONDON, W.C. [JUNE, 1904.] A B C (The) of Cricket: a Black View of the Game. (26 Illustrations.) By HUGH FIELDING. Demy 8vo, 1_s._ Adams (W. Davenport), Works by. A Dictionary of the Drama: A Guide to the Plays, Playwrights, Players, and Playhouses of the United Kingdom and America, from the Earliest Times to the Present. Vol. I. (A to G). Demy 8vo, cloth, 10_s._ 6_d._ net. [_Shortly._ Quips and Quiddities. Selected by W. DAVENPORT ADAMS. Post 8vo, cloth limp, 2_s._ 6_d._ Agony Column (The) of ‘The Times,’ from 1800 to 1870. Edited, with an Introduction, by ALICE CLAY. Post 8vo, cloth limp, 2_s._ 6_d._ Alden (W. L.).--Drewitt’s Dream. Crown 8vo, cloth, gilt top, 6_s._ Alexander (Mrs.), Novels by. Post 8vo, illustrated boards, 2_s._ each. Maid, Wife, or Widow? Blind Fate. Crown 8vo, cloth, 3_s._ 6_d._ each; post 8vo, picture boards, 2_s._ each. Valerie’s Fate. A Life Interest. Mona’s Choice. By Woman’s Wit. Crown 8vo, cloth 3_s._ 6_d._ each. The Cost of her Pride. A Golden Autumn. Barbara, Lady’s Maid and Peeress. Mrs. Crichton’s Creditor. A Missing Hero. A Fight with Fate. The Step-mother. Allen (F. M.).--Green as Grass. Crown 8vo, cloth, 3_s._ 6_d._ Allen (Grant), Works by. Crown 8vo, cloth, 6_s._ each. The Evolutionist at Large. Moorland Idylls. Post-Prandial Philosophy. Crown 8vo, art linen, 3_s._ 6_d._