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Updated: May 10, 2025
"And now, having shown it to you, for my own safety I will place it back in its leaden casket." Drawing off his gloves, he proceeded. "I have found out by a cablegram to-day that seven weeks ago an order for one hundred milligrams of radium bromide at thirty-five dollars a milligram from a certain person in America was filled by a corporation dealing in this substance."
To be exact, one milligram of thyroxin increases the metabolic rate two per cent. That illustrates some of the power of the internal secretion of the thyroid and its importance to normal life. But not only is the height of pressure of energy in the cells controlled by the thyroid. The mobility of that energy is also controlled.
Each numbered division on the beam corresponds to one milligram, and the use of the rider obviates the placing of very small fractional weights on the balance pan. If a new rider is purchased, or an old one replaced, care must be taken that its weight corresponds to the graduations on the beam of the balance on which it is to be used.
It should be noted that a variation in weight of 10 milligrams in a total weight of 25 grams is no greater relatively than a variation of 0.1 milligram when the sample taken weighs 0.25 gram Evaporate to dryness on the water bath. Transfer the filter and contents to a porcelain crucible, dry carefully over a low flame, and ignite to constant weight.
"And now, having shown it to you, for my own safety I will place it back in its leaden casket." Drawing off his gloves, he proceeded. "I have found out by a cablegram to-day that seven weeks ago an order for one hundred milligrams of radium bromide at thirty-five dollars a milligram from a certain person in America was filled by a corporation dealing in this substance."
Despite the enormous amount of energy given off by radium it seems not to change in itself, there is no appreciable loss in weight nor apparently any microscopic or chemical change in the original body. Professor Becquerel has stated that if a square centimeter of surface was covered by chemically pure radium it would lose but one thousandth of a milligram in weight in a million years' time.
Its "microbalance" can estimate "the difference of weight of the order of the millionth of a milligram." Light travels at the speed of 186,000 miles a second, yet science can follow it with its methods, and finds that it travels faster with the current of running water than against it.
Darier has reported that a single subconjunctival injection of a milligram of iodate of sodium has cleared the cornea and lessened the intra-ocular pain in glaucoma. What shall be said in regard to certain medicinal agents which stimulate the lymphagogue activity of the eyeball in their relation to the reduction of intra-ocular tension, notably of dionin?
Captain Nemo stopped, straightened up, took a few steps along the platform, and returned to me: "As for those billions of tiny animals," he went on, "those infusoria that live by the millions in one droplet of water, 800,000 of which are needed to weigh one milligram, their role is no less important.
It was what we call a tread-snail, because it moves on a double row of pads like stumpy feet and leaves a trail like a tractor. The fishpole-aerial thing it had erected out of its head was its stinger, and the yellow stuff was venom. A tenth of a milligram of it in your blood and it's "Get the Gate open, St. Peter; here I come." Tom saw it as soon as I did.
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