The divisions of both drums are conveniently read, simultaneously, by the lens e; at night the lamp which illuminates the webs and the position-circle also illuminates the drum-heads (see on illumination p. 385).
The lamp c illuminates the drum-head and also, by reflection, the portions of the position-circle which come under the microscopes d and e.
The interdependence of the south Palestinian peoples follows from geographical conditions which are unchangeable, and the fuller light thrown upon the last decades of the 8th century B.C. illuminates the more fragmentary evidence elsewhere.
This literature is especially valuable because it illustrates contemporary Halaka and Haggada, and it illuminates the circle of thought with which Jesus and his followers were familiar; it thus fills the gap between the Old Testament and the authoritative Rabbinical Midrashim which, though often in a form several centuries later, not rarely preserve older material.'
Bourhood of the D lines, is practically undeviated, so that it illuminates only a very short piece of the slit and is spread out into the ordinary spectrum.
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