...Of course the road was of the roughest description, and sometimes we had to hold on with all our might to avoid the concussion of our heads with the wooden roof... 
Lady Sarah Wilson 「South African Memories」
...The animal usually falls, as from an apoplectic attack,and, as a matter of course, the symptoms are such as are generally manifestedin connection with concussion of the brain...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The insect more sensitive to the alarm due to concussion or to a fallof temperature is also the more sensitive to the action of ether...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...here was no flame—only a concussion that cracked upon one's ears,and flying rock fragments that filled the air with demoniac shrieks...
Various 「Astounding Stories, May, 1931」
...I dobelieve, however, that a slight concussion of the brainhelps one appreciate Science Fiction the more...
Various 「Astounding Stories, May, 1931」
...It was a cloud of dust when the concussion reached meto dash me breathless to the earth...
Various 「Astounding Stories, June, 1931」
...I was smashed flat by a stunning concussion...
Various 「Astounding Stories, June, 1931」
...Rocked by a concussion as of two worlds in impact, blinded by a glarethat made the sunlight seem feeble in comparison...
Various 「Astounding Stories of Super-Science, August 1930」
...The concussion blew thefabric off 'em...
Murray Leinster 「Morale」
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