HISTORY OF SCIENCE — LITERATURE. 385 



of Isis; (3) the study of the historical collection of instruments, tools, 

 and machines kept at the National Museum. 



3. Leonardo studies. — These studies have been temporarily inter- 

 rupted (1) because while in Italy I heard that the great Gahlean 

 scholar Antonio Favaro, of Padova, had almost completed the de- 

 ciphering of the English codices, a tedious task which it w^ould be waste- 

 ful to dupHcate. The publication of Favaro's work is delayed only by 

 economic circumstances; (2) because the preparation of my introduc- 

 tion to the history of science is far more urgent. I have examined the 

 Leonardo manuscripts kept at Windsor Castle, at the British Museum, 

 and at the South Kensington Museum, and have made arrangements 

 for their being photographed as soon as this is necessary. 



4. History of physics in the nineteenth century. — I continue to collect 

 materials on this subject, although I shall not be able to devote myself 

 entu-ely to it before the Leonardo mvestigations are completed. I 

 take advantage of this report to ask for the assistance of all persons 

 who may happen to possess biogTaphical infoi-mation on the physicists 

 of the last century. Such information is often difficult to obtain, as 

 most academic biographies, for instance, are more concerned with 

 artificial data (such as degrees and other honors) than with biographical 

 facts of intrinsic value. 



5. The new humanism. — I am carrying on my propaganda for this 

 movement — that is, the reconciliation of the scientific with the human- 

 istic spirit, and have written the following papers to support it : War 

 and Civilization (Isis, II, 315-21, Bruxelles, 1919); Secret History 

 (Scrihner's Magazine, vol. 69, p. 187-92, New York, Feb. 1920) ; Herbert 

 Spencer {ibidem, p. 695-702) ; The Faith of a Humanist (Isis, III, 3-6, 

 Bruxelles, 1920). I gave only one lecture, namely, before the Institut 

 des Hautes Etudes, Universite Nouvelle, in Brussels. 



The hospitality extended to me by the Widener Library at Cambridge 

 enables me to pursue my work under the best conditions. In exchange 

 I have agreed to give a short course of lectures to the Harvard com- 

 munity. 



LITERATURE. 



Bergen, Henry, Brooklyn, New York. Research Associate in Early English 

 Literature. (For previous reports see Year Books Nos. 11-18.) 



Dr. Bergen reports that the entire text of Lydgate's "Fall of Princes" 

 is now in type, and it is hoped that two volumes, containing the text 

 and some introductory matter, will be ready for publication in 1920. 

 Work on the ''Troy Book" glossary has gone on, parallel with the issue 

 of each part of the Oxford Dictionary. 



Tatlock, John S. P., Stanford University, California. Preparation of a con- 

 cordance to Chaucer. (For previous reports see Year Books Nos. 16-18.) 



The slips for the Concordance to the Works of Chaucer, in number 

 about 250,000, have been prepared by about forty volunteer collab- 



