_Solid Plates._ It has often struck me as remarkable that the shells of the tortoise and turtle, which are so widely distributed and so easily captured, and which would appear to furnish shields ready made to the hand of man, should seldom, if ever, in so far as I have been able to learn, be used by savages for that purpose. This may, however, be accounted for by the fact that _broad_ shields of that particular form, though common in more advanced civilizations, are never found in the hands of savages, at least in those localities in which the turtle, or large tortoise, is available.
It will be seen subsequently, in tracing the history of the shield, that in the rudest condition of savage life, this weapon of defence has a history of its own; that both in Africa and Australia it is derived by successive stages from the stick or club, and that the broad shield does not appear to have been developed until after mankind had acquired sufficient constructive skill to have been able to form shields of lighter and more suitable materials than is afforded by the shell of the turtle. It is, however, evident that in later times the analogy was not lost sight of, as the word ‘testudo’ is a name given by the Romans to several engines of war having shields attached to them, and especially to that particular formation of the legionary troops, in which they approached a fortified building with their shields joined together, and overlapping, like the scaly shell of the imbricated turtle, which is a native of the Mediterranean and Asiatic seas.
_Jointed Plates._ In speaking of the jointed plates, so common to all the crustacea, it is sufficient to notice that this class of defence in the animal kingdom, may be regarded as the prototype of that peculiar form of armour which was used by the Romans, and to which the French, at the commencement of the seventeenth century, gave the name of ‘écrevisse’, from its resemblance to the shell of a lobster. The fluted armour, common in Persia, and in the middle ages of Europe, is also constructed in exact imitation of the corrugated shell defences of a large class of the Mollusca.
_Scale Armour._ That scale armour derived its origin from the scales of animals, there can be little doubt. It has been stated on the authority of Arrian (_Tact._ 13. 14), that the Greeks distinguished scale armour by the term λεπιδωτός, expressive of its resemblance to the scales of fish; whilst the jointed armour, composed of long flexible bands, like the armour of the Roman soldier, and the ‘écrevisse’ of the middle ages, was called φολιδωτός from its resemblance to the scales of serpents. The brute origin of scale armour is well illustrated by the breastplate of the Bugo Dyaks, a specimen of which, from the Museum of the Institution, is represented in Plate IX, fig. 34. The process of its construction was described in a notice attached to a specimen of this armour in the Exhibition of 1862. The scales of the Pangolin are collected by the Bugis as they are thrown off by the animal, and are stitched on to bark with small threads of cane, so as to overlap each other in the same manner that they are arranged on the skin of the animal. When the front piece is completely covered with scales, a hole is cut in the bark for the head of the wearer. The specimen now exhibited appears, however, to be composed of the entire skin of the animal. Captain Grant, in his _Walk across Africa_, mentions that the scales of the armadillo are in like manner collected by the negroes of East Africa, and worn in a belt ‘three inches across’, as a charm.[65]