Word: colorlessly
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...Paul Wilhelm Karl Rothemund explained that grass is green because out of water and the chemicals of earth it, like all plants, manufactures a colorless substance called proto-chlorophyll. Proto-chlorophyll accumulates in certain cells of leaves called chloroplasts where it comes in contact with carbon dioxide in the air. When the sun is shining a molecule of proto-chlorophyll, stimulated by an atom of magnesium which holds it together, absorbs four quanta of energy from a sunbeam. The extra energy enables the proto-chlorophyll to attract carbon dioxide, kick off the oxygen which it does not require, absorb...
...Rothemund concluded that this was the process of photosynthesis and chlorophyll genesis after he raised an acre of colorless corn in the pitch-dark cellar of the big laboratory building which Antioch College built with Mr. Kettering's money. The extract of white corn leaves turned green when Dr. Rothemund put it in jars of carbon dioxide...
...conscience, Mr. Mapel had a task which few newspaper editors would have coveted. He started with a straight Associated Press dispatch from Washington leading the du Ponts to the witness stand. The evening edition that day carried a story written by one of its own men. It was studiously colorless, except for identifying the du Ponts as makers of "the high explosives that to a great extent enabled the Allied armies to win that great conflict...
...obtained a half-pound of his acid. In March last year, Professor Walter Norman Haworth of Birmingham. England determined the vitamin's constitution, and in August he, and Swiss chemists in Zurich. independently synthesized Vitamin C from a ketonaldehyde and hydrogen cyanide. Now the pure substance is produced as colorless crystals in Swiss and British laboratories at 3¢ per gram...
...appreciated his delicacy in waiting until his next to last week in office before marrying a lady of wealth with a chateau in southern France. When President Gaston Doumergue retired his popularity remained such as utterly to eclipse his two successors. There was no one else whom sad-eyed, colorless President Albert Lebrun could call to the Premiership in the bloody days of last winter when le peuple seemed rising against a Government hopelessly corrupt. Last week beloved Gaston Doumergue went to the microphone and gave an accounting of his stewardship as Premier in the last six fateful months...