Irregular Troops of Russia.
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The general appearance of the irregular troops of the empire is shown in the accompanying group, in which figure 1 represents a Lesghian from western Daghestan : 2, a Don Cossack ; 3, a Circassian, in full dress; 4, a " Tartar-Cossack" of the Crimea; 5, a Cossack of the line of the Caucasus ; and 6, a Cossack of the Ural. The reader will bear in mind that the Circassians employed in the Russian service belong to the subdued tribes at the foot of the Caucasian mountains, a large portion of the mountain warriors being still hostile to the imperial rule.
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Sears, Robert. An Illustrated Description of the Russian Empire. New York: Robert Sears, 1855