AN ELEMENTARY TREATISE ON QUATERNIONS Peter Guthrie P. G. TAIT, M. A. FORMERLY FELLOW OF ST. PETER'S COLLEGE, CAMBRIDGE, PROFESSOR OF NATURAL PHILOSOPHY IN THE UNIVERSITY OF EDINBURGH, τετρακτύν, παγὰν ἀενάου φύσεως ῥιζώματ ̓ ἔχουσαν. Oxford AT THE CLARENDON PRESS M.DCCC.LXVII. [The rights of translation and reproduction are reserved.] |