Next morning the scouts of both armies approached each other, followed by the respective armies, which at length came in sight.  The army of Centeno consisted of about a thousand men, two hundred of whom were cavalry, an hundred and fifty armed with musquets, and all the rest with pikes.  Of this army, Luis de Ribera was major-general, Pedro de Rios, Jerom Villegas, and Pedro de Ulloa, captains of cavalry, and Diego Alvarez carried the grand-standard.  The captains of infantry were Juan de Vargas, Francisco Retamoso, Negral, Pantoia, and Diego Lopez de Zuniga; Luis Garcias being sergeant-major, or adjutant-general[33].  The army of Gonzalo consisted only of five hundred men, of which three hundred were musqueteers, and eighty cavalry, the remainder being armed with pikes.  Of this army Carvajal was lieutenant-general; the licentiate Cepeda and Juan Velez de Guevara were captains of horse; and Juan d’Acosta, Ferdinand Bachicao, and Juan de la Torre captains of foot.

[Footnote 33:  It is not easy to understand how Mendoza, who had joined Centeno some time before, happens to be omitted in this enumeration—­E.]

Both armies being drawn up in good order, the insurgents advanced, to the sound of trumpets and other musical instruments, till within six hundred paces of the enemy, when Carvajal ordered them to halt.  The royalists continued to advance till within a hundred paces less, and then halted likewise.  At this time, forty musqueteers were detached from the army of Gonzalo, with orders to begin the engagement; and two other parties of musqueteers, of forty men each, were posted on the wings, Pizarro taking his station between his cavalry and infantry.  Thirty musqueteers were likewise advanced from the army of Centeno, to skirmish with those of the insurgents.  As Carvajal observed that the royalists waited the attack in good order, he ordered his troops to advance a few steps very slowly, in hopes of inducing the enemy to make some movement or evolution which might occasion confusion in their ranks.  This had the desired, effect, as the royalists, believing that their enemies, though interior in number, wished to have the honour of making the attack, they began immediately to advance, and the insurgents by order of Carvajal stood firm to receive them.  When tolerably near, Carvajal gave orders for a small number of his troops to fire their musquets, on which the royalists made a general discharge, and marched forwards at a quick step with levelled pikes, during which the royalist musqueteers made a second discharge without occasioning any loss to the enemy, as they were still three hundred paces distant.  Carvajal made his men reserve their fire till the enemy was within about an hundred paces; when, with a few pieces of artillery, and the whole of his musqueteers, he threw in so destructive a volley that above an hundred and fifty of the royalists were slain, among whom were two of their captains.  By this terrible slaughter, the whole infantry of the royalist army