Peru, P recent archæological coveries in, xiii dis- Phillips, Henry M., Prize Essay, re- Pickering, objective prism spectra, Pitcher, interrelations of eight funda- Planets, inner, secular variation of Poetry, Persian mystic, rii Poison, the protein, 206, xii R Richards, an autocollimating mount- Rodgers, validity of the law of relations between the spectra S Sedgwick, is typhoid fever a rural See, determination of the depth of dynamical theory of the globular Sociedad Astronomia de Barcelona, Xv General Meeting-April 17-19, 1913 The General Meeting of 1913 will be held on April 17th, 18th and 19th, beginning at 2 p. m. on Thursday, April 17th. Members desiring to present papers are requested to send to the Secretaries, at as early a date as practicable, and not later than April 7, 1913, the titles of these papers, so that they may be announced in the final programme which will be issued immediately thereafter, and which will give in detail the arrangements for the meeting. Papers in any department of science come within the scope of the Society, which, as its name indicates, embraces the whole field of useful knowledge. The Publication Committee, under the rules of the Society, will arrange for the immediate publication of the papers pre. sented. I. MINIS HAYS ARTHUR W. GOODSPEED AMOS P. BROWN HARRY F. KELLER Secretaries. Members who have not as yet sent their photographs to the Society will confer a favor by so doing; cabinet size preferred. It is requested that all correspondence be addressed TO THE SECRETARIES OF THE AMERICAN PHILOSOPHICAL SOCIETY 104 SOUTH FIFTH STREET PHILADELPHIA, U S. A. |