May-Ah-Ha!

So it went on indefinitely.

To lay this troubled spirit I tossed him a handful of coins, with the
unfortunate result that his guttural song became, if anything, more
loud and boisterous. I had no thought of exchanging my partner, as
the Aztec maiden clung to me. With closed eyes and parted lips she
moved as in a blissful dream. I have known Christian people become
frantic under the impetus of great religious excitement and I have
seen them act very strangely, also have I seen Indians similarly
affected during their medicine-ghost dances. Now I, who had not
thought it possible of myself, had become more savage and
uncontrollable than any one. I suppose it was the irritating,
monotonous sound of the war drum that did it, jarring my nerves, and
the peculiar Indian odor in the stifling hot air of the close room,
enhanced by the exhilarating sensation of threatening danger, and
that in the presence of the adored sex. Assuredly all this was more
than enough to set me off, as I am naturally impulsive and of a
high-strung nervous temperament.

I must say that considering the modest costumes of these Indian
ladies and their bashful and shrinking disposition, it does seem
strange that they should fascinate one like myself of the Saxon race.
To be sure the sight of the bared shoulders and necks of society
belles when undressed in the decollete fashion of their ball gowns
ravishes and gluts our sensuality, but a momentary glimpse of the
Indian maid's brown knee flashing by during the excitement of the
fandango is just as suggestive, and the inch of hand-made embroidery
on the edge of their short skirts is as effective as priceless lace