cxxiv PROCEEDINGS OF THE CENTENARY MEETING. 



R. Universiteit, Leiden. 



Academiae Disciplinarum Physicarum Philadelphiensi S. p. d. Universitatis 



Lugduno-Batavae Rector et Senatus. 



Quod nos ad ferias saeculares mense Martio Vobis celebrandas invitatis 

 insigni nos a Vobis affectos honore penitus sentimus. Quo magis dolemus quod 

 magnum terrarum mariumque spatium quominus humanissima ilia invitatione 

 utamur obstat. Sed quamquam lactis illis diebus e nostro munero nemo istuc 

 legari poterit, tamen omnes mente animoque tunc Vobiscum gaudebimus. Et 

 iam nunc pro illustri Vestra Academia ex animi sententia vota suscipimus 

 solemnia. 



Vivat, crescat, floreat et facem humanitatis praeferre omnibus pergat quibus 

 bonae artes cordi sunt ! 



Lugd. Batav. die XXVII Menis Februarri MCMXII 



F. PlJPER 



Rector magnificus. 



B. D. Erdmans, 



Actuarius. 

 On folio sheet with seal of University. 



University of Cambridge. 



Registry of the University of Cambridge, England, 14 March, 1912. 

 To the President of The Academy of Natural Sciences of Philadelphia. 

 Sir: 



I have the honor to inform you that the Senate of the University at a 

 congregation held this day in the Senate House appointed Ernest William 

 Brown, Doctor of Science, formerly Fellow of Christ's College, Professor of 

 Mathematics in the University of Yale, to represent the University at the 

 Centenary Anniversary of the Academy of Natural Sciences of Philadelphia in 

 March, 1912. 



I have the honor to be, Sir, 



Your obedient Servant 



John Neville Keynes, 



Registrary. 

 Seal. 



