For our present purpose it is quite sufficient to call attention to the fact that this grain which forms the lowest unit of the Assyrian scale weighs ·042 gram (·95 ÷ 22·5) which is a very close approximation to the weight of the _wheat-grain_ (·047). Making allowance for some loss which the weight may have sustained, it seems impossible to doubt that we have here the wheat-grain being used to form the smallest unit as it is in the modern Arabic system. The double obol of the Assyrians weighs 30 grains; we shall also find that the Hebrew _gêrâh_ or obol (twenty of which made a shekel), weighed exactly 15 _grains of wheat_, that is the Hebrew _gêrâh_ is the light obol which stood side by side with the heavy obol of 30 grains in the Assyrian system. Let us treat the matter from a slightly different point of view: As the _light_ Assyrian obol contained 15 _Assyrian_ grains, the _light_ shekel contained 180 _Assyrian_ grs. But as we know that this light Assyrian shekel weighed 8·4 grams, or 131 grains _Troy_, and as we know that the _Troy_ grain is really the barley-corn and likewise that 3 barley-corns = 4 _wheat_ grains, it is obvious that 131 grains Troy = 175 _wheat_ grs. nearly, a very close approximation to the 180 _Assyrian_ grs. Again as 180 _Assyrian_ grs. = 8·4 grams, the _Assyrian_ grain weighed ·046 gram, that is almost exactly the weight of a _wheat_ grain (·047 gram). But let us see for a moment in what fashion M. Aurès accounts for the presence of corn-grains in a system so elaborately scientific as he and his school maintain.