BY THE REV. J. JOYCE,

AUTHOR OF SCIENTIFIC DIALOGUES,

IN SIX VOLUMES.

VOL. II.

LONDON:

PRINTED FOR J. JOHNSON,

NO. 72, ST. PAUL'S CHURCHYARD.

QD 35 J89

جھا

Printed by Law and Gilbert, St. John's Square.

7-26-42

2

CONTENTS OF VOL. II.

Conversation

1-4-54m9G

I. Of Acids.

Page

1

Of the Sulphuric and Sulphurous Acids.... 13

Of the Phosphoric and Phosphorous Acids;

of the Fluoric and Boracic Acids......

Of Acid Supporters; of the Nitric and Ni

II.

III:

IV.

V.

Of the Muriatic Acid.

VI.

trous Acids

Of the Combustible Acids; of Acetic, Ben-

zoic, Succinic, Camphoric, and Oxalic

Acids

VII. Of the Mellitic, Tartaric, Citric, Sebacic,

Saclactic, Laccic, Malic, Lactic, Suberic,

26

XIII. Of Iron

XIV. Of Tin and Lead

XV. Of Nickel, Zinc, and Bismuth.

Conversation

Page

XVI. Of Antimony; Tellurium, and Arsenic 142

XVII. Of Cobalt; Manganese, and Tungsten.. 155

XVIII. Of Molybdenum; Uranium; Titanium;

Chromium; Columbium; and Tan-

XXV.

Of Fecula, Jelly, Sugar, 'Gluten, Oil,

Camphor, Wax, Resin, Extract, Caout-

chouc

222

XXVI. Of Tannin, Colouring Matter, Suber,

CONVERSATION I.

Of Acids.

TUTOR. Do you know how acids are distinguished?

Charles. They are I believe liquids, and excite the sensation of sour on the tongue: such is vinegar.

Tutor. It is not necessary that acids should be in a liquid state, though they are generally in that form: they are solid, liquid, or in the state of gas.

James. I remember one of them is the

VOL. II.

1