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Let us turn our attention, in September, to the wrapper of a wasps' nest. On the outer surface and there alone, this wrapper is strewn with a multitude of big, white, elliptical dots, firmly fixed to the brown paper and measuring about two millimeters and a half long by one and a half wide.
She got the instrument out. It consisted of a little arrangement that fitted over the forearm, and was attached by a tube to a dial that registered in millimeters a column of mercury. Would it really show anything, she wondered? There was a quick call on the telephone and she answered it, her hand trembling, for she felt sure that it was something about the little woman she had befriended.
The length, tail, hind foot, and ear of each specimen was first carefully measured in millimeters and recorded in the field catalogue and upon a printed label bearing our serial number; then an incision was made in the belly, the skin stripped off, poisoned with arsenic, stuffed with cotton, and sewed up.
These infantile individuals all belonged to the first three classes and mostly to the first. The average testicular diameter in the first class was nearly 24 millimeters, and progressively rose in the succeeding classes to over 26 millimeters in the fourth. While there was not much difference in height, the first class was the shortest, the fourth the tallest.
Compression is effected by means of a pump, F or F', which sucks the gas into a desiccating cylinder, M, connected with the gasometer of the works The pump, F, which is used when the production is larger than usual, has two compressing cylinders of different diameters, one measuring 170 millimeters and the other 100. The piston has a stroke of 320 millimeters.
It will be more convenient to divide these ratios by one million, to avoid the large numbers otherwise involved. If one millionth of a millimeter is taken as the unit of wave length, the length of this unit on the map in millimeters will give the same measure of the dispersion as that just described. When the map is not normal, the dispersion of course varies in different parts.
Under favorable conditions, that is, with moisture, heat, and the presence of vegetable matter in decomposition, the filaments of mycelium increase in length. From these long filaments springs the fungus. With a linear magnitude of 480, the sporangia have a transverse diameter of one to five millimeters, or a little more in the larger specimens.
Its lower end is continuous with the muscle fibers of the right auricle. From this node "the excitation wave is conducted radially along the muscular strands at a uniform rate of about a thousand millimeters per second to all portions of the auricular musculature."
The evaporation only amounted to 2,307.3 millimeters; in ordinary years it is generally about equal to the downfall, taking the early averages, not those of single months. The average daily evaporation was about 6.3 millimeters.
The dispersion may accordingly be found with sufficient accuracy by measuring the interval between the H and K lines, and dividing the result in millimeters by 3.4, since the difference in their wave lengths equals this quantity.
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