Another excellent micrometer, originally based on a model by Clark of Cambridge, Massachusetts, has been largely used by Burnham and others in America.
Instruments have been invented by Alvan Clark and Sir Howard Grubb for measuring with the spider-line micrometer angles which are larger than the field of view of the eyepiece.
Clark in Dict.
He vetoed in 1854 a bill prohibiting the sale of intoxicating liquors (which was declared unconstitutional almost immediately after its reenactment in 1855), and in consequence he was defeated in 1854 for re-election as governor by Myron Holley Clark (1806-1892), the Whig and temperance candidate.
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