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doc#120 here. 500 ml of 1M aqueous <formul> with 1 g <formul> added are heated in a bomb at
doc#120 hours. A very fine, gray solid (about 15 g ) is formed, water-washed by centrifugation
doc#123 Table 5-1. From an estimated mass of 25 g for a zero-magnitude meteorite, the other
doc#123 , Jacchia (1948) derived a scale of 0.15 g for a <formul>, zero-magnitude meteorite
doc#125 cellulose, containing 0.78 mEq of N<sol> g , was prepared in our laboratory by the
doc#129 bearing reguli <formul> and <formul>, and let g be a <formul> curve of order k on Q. A
doc#129 <formul>, whose lines are simple secants of g . On these generators let <formul> and <formul>
doc#129 which the corresponding generator meets g The line <formul> is the image of l. Clearly
doc#129 line can meets its image are the points of g . Hence the totality of singular lines is
doc#129 <bital>k<eital>th order complex of lines which meet g . </p><p> The invariant lines are the lines
doc#129 the lines of the congruence of secants of g , since each of these meets Q in two points
doc#129 <formul>, since an arbitrary plane meets g in k points. </p><p> Since the complex of
doc#129 <formul> which is not a secant but a tangent of g , for then any point on such a generator
doc#129 <formul> lines of <formul> which are tangent to g . Clearly, any line, l, of any bundle having
doc#129 generator of <formul> which is tangent to g at T. A line through two of these points
doc#129 bilinear congruence having the tangents to g at <formul> and <formul> as directrices
doc#129 of the lines which meet a twisted curve g . We now shall show that any involution
doc#129 must first show that every line which meets g in a point P meets its image at P. To see
doc#129 However, since the pencil contains a secant of g it actually contains only <formul> singular
doc#129 that C be composite, with the secant of g and a curve of order <formul> as components