In the defence and attack of field-works, and in the passage of rivers, artillery plays an important and indispensable part; but it here becomes an auxiliary to the dispositions of the engineers, or at least acts in concert with that arm.

The troops of artillery, in all well-regulated army organizations, should equal about two-thirds of the cavalry, or one-seventh of the infantry.[36]

[Footnote 36:  To qualify himself for the duties connected with his arm of service, the artillery officer must make himself thoroughly acquainted with—.

The Instruction for United States Field Artillery, horse and foot;

Capt.  Anderson’s Instruction for Garrison Artillery;

Kinsley’s Notes on Pyrotechny;

Knowlton’s Notes on Gunpowder_,&c.; and

The writings of Thiroux and Piobert on theoretical and practical instruction, and the writings of Jomini, Decker, and Okotmeff, on the use of this arm on the field of battle.

The following list of books of reference may be of use to those who wish to make themselves perfectly familiar with all the branches of artillery.

Histoire general de l’artillerie.  Brunet.

L’artillerie a cheval dans les combats de cavalerie.  Par un officier de l’artillerie Prussienne.

Considerations et experiences sur le tir des obus a bulles.  Bormann. Essai sur les obusiers.  Dusaert.

Essai sur l’organisation de l’artillerie.  Le Bourg.

Traite sur l’artillerie, (traduit de l’Allemand.) Rouvroy.

Bombardier Francais.  Belidor.

Memoires d’artillerie.  St. Remy.

Essai sur l’usage de l’artillerie dans la guerre de campagne et celle de siege.  Dupuget.

Memoires sur les nouveaux systemes d’artillerie.  St. Aubin.

Treatise on Artillery.  Mueller.

Artificial Fire-Works.  Jones.

Table de tir les canons et obusiers.  Lombard.

On Gunpowder.  Antoni.

Recherches sur l’artillerie en general.  Texier de Norbec.

Description de l’art de fabriquer les canons.  Monge.

Procedes de la fabrication des armes blanches.  Vandermonde.

Manuel de l’artilleur.  Durtubie.

Traite du mouvement des projectiles.  Lombard.

Treatise on Artillery.  Scheel. (Translated from the German.)

Traite pratique des feux d’artifice.  Morel.

Manuel du canonnier marin.  Cornibert.

New Principles of Gunnery.  Robins.

Memoires sur la fabrication des armes portatives.  Cotty.

Recherches sur la poudre.  Cossigny.

Supplement.  Cossigny.

Fabrication de la poudre.  Renaud.

American Artillerist’s Companion.  Toussard.