The birth- Basses-Al rate markedly decreased during the 19th century; Basses-Py despite an increase of population between 1801 and Belfort, 1

With A' =0 over the surface of the paraboloid; and then' = ZU[y 2 - pJ (x2 + y2) + px ]; (9) =-2U p [1/ (x2 + y2)-x]; (io) 4, = - ZUp log [J(x2+y2)+x] (II) The relative path of a liquid particle is along a stream line 1,L'= 2Uc 2, a constant, (12) = /,2 3, 2 _ (y 2 _ C 2) 2 2 2 2' - C2 2 x 2p(y2 - c2) /' J(x2 +y 2)= py ` 2p(y2_c2)) (13) a C4; while the absolute path of a particle in space will be given by dy_ r - x _ y 2 - c2 dx_ - y - 2py y 2 - c 2 = a 2 e -x 1 46.

From them are developed a weak demonstrative to which possessive suffixes can be attached, producing the definite and possessive articles (p, t~, n, the, **py-f**, his, **py-s** her, &c.) of Middle Egyptian and the later languageS

P g PY en P however, the cotyledon is not really terminal.

- ~(Px) - I(Py) - ~(Pz)

129) be the axis of a pivot, and let RPC be a portion of a curve such that at any point P the secant of the obliquity to the normal of the curve of a line parallel to the axis is inversely proportional to the ordinate PY, to which the velocity of P is proportional.