crankshaft, and at a small distance apart, to give space Double tonguing

( Mus.) A peculiar mode of jection. (Phil.) That state of mind in which we hesitate as to two contradictory conclusions, having no preponderance of evidence in favor of either. Philosophers distinguish two kinds of doubt, - provisional and definite. Provisional doubt is a voluntary suspension of our judgment for a time, in order to come to a more clear and sure conclusion. Definitive doubt is scepticism. We doubt through blindne , or pa ion, or malice; through fancy, or from a wish to doubt; but we doubt also from prudence and from mistrust, from wisdom and through penetration of mind. A preliminary doubt is the fundamental condition of philosophy. We begin, in order that we may not end with doubt. This was first established as a rule in philosophic inquiry by Des cartes, who tells us that he began by doubting everything, discharging his mind of all preconceived ideas, and admitting none as clear and true until he had subjected them to a rigorous examination. Doubt'able, a . That may be doubted; questionable. Doubt'er, n. One who doubts; one who has scruples; one who is uncertain. IMG:content-0671.jpg:[graphic][subsumed][subsumed][subsumed]