Word: milligrams
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...freedom of the workers from possible injury. The simple compound, trichlornapthalene can be present up to 10 milksops per cubic meter of air without ill effects. The more complex compounds, tetrachlornaphthalene, pentachlornap thalene, hexachloranapthalene and chlorinated biphenyl, can be present at safely only to the extend of half a milligram per cubic meter...
...rich radium deposit is one which yields 90 to 120 milligrams (.00315 to .0042 oz.) nearly pure radium bromide salt per ton of concentrated ore (50 tons of crude ore). From ore bodies of such richness in northwestern Canada the refining plant is able to extract one gram of commercially pure radium from 550 tons of mined ore. A San Diego mining engineer and chemist named F. S. Kearney, now working in Mexico, assayed Mrs. Bishop's ore at 130 milligrams of radium per ton. This high figure, Mrs. Bishop said, was confirmed when she sent a sample...
...that other animals besides man could become drug fiends. With evident gusto, dapper Dr. Yerkes told the philosophers how he had made morphine addicts of two male apes eight years old. After the animals became reconciled to having their flesh pricked by dummy syringes, they were daily given one milligram of morphine per kilogram of body weight and the dose was increased to four milligrams (a much smaller intake than that of human addicts). Symptoms of addiction were increased "grooming" (scratching, skin picking, hair plucking), restlessness, nocturnal activity, gastric and bowel disturbances, slight loss of weight, increased amiability and apparent...
Another product made from maleic acid is Succinic Acid, which occurs naturally in amber. A compound of succinic acid,, succinyl-chlorimide, has been found to be a thoroughgoing purifier of water. A six-milligram speck of succinyl-chlorimide, reported Dr. Downs, disinfects a canteen of water in a few minutes...
Science has succeeded in photographing tones. Now that it is known to possess weight, the physicist will find no rest until he has tabulated the specific gravity of all the sounds from a milligram bird's twitter to a hundred-ton football cheer. Modern ingenuity has learned to "can" music. Certain modern composers have succeeded in extracting the melody from it, and producing compositions of pure noise. Music may be bought by the sheet, the roll, or the disk. Perhaps the time is not far distant when it will be priced like cabbages, at so much a pound...