PALEONTOLOGY — PHILOLOGY — PHYSICS. 27 1 



which to take a census of early Jurassic plants, and this it is now assured 

 will shed much new light on the course of evolution in pre-Angiosperm 

 times. The task before us, therefore, is the accurate field measurement of 

 the more promising mid-Mesozoic plant-yielding strata of the globe and in- 

 vestigation of personally collected series. 



PHILOLOGY. 



Loew, E. A., Oxford, England. Grant No. 757, allotted December 15, 191 1. 

 Continuation and completion of researches and publication of the "Scrip- 

 tura Beneventana." (For previous reports under auspices of the Roman 

 School see Year Books Nos. 9 and 10.) $1,500 



The work of the past year has been a continuation of that of previous 

 years. Five months were spent in Italy, the remainder of the time in Ox- 

 ford. The book on the "Beneventan (or South Italian) Script" is now ready 

 for press. It seemed advisable to include in the book itself the catalogue of 

 Beneventan MSS., which I had intended to put in a second volume. To do 

 this it was necessary to revisit the libraries of the Benedictine monasteries 

 of Monte Cassino and La Cava, besides those of Naples (Nazionale, Bran- 

 cacciana, and Archivio di Stato), Salerno, and Rome (Vaticana, Vallicel- 

 liana, Chigiana, Vittorio Emanuele, Corsiniana, Casanatense, and Angelica). 

 Previous investigations in preparation for this book had been made in the 

 libraries of Florence, Lucca, Milan, Monza, Novara, Vercelli, and Ivrea ; of 

 Berne, St. Gall, Einsiedeln, and Zurich ; of Munich, Bamberg, and Carlsruhe ; 

 of Vienna, of Paris, of London, and of Oxford. I am at present engaged 

 upon the description of the 100 plates of facsimiles of Beneventan MSS., and 

 both the book and the plates are expected to be issued early next year. 



PHYSICS. 



Barus, Carl, Brown University, Providence, Rhode Island. Grant No. 775. 

 allotted December 15, 191 1. Study of the diffusion of gases through 

 liquids. (For previous reports see Year Books Nos. 4, 5, 7-10.) $500 

 Since the author noticed in 1895 that the Cartesian diver used in his lec- 

 tures grew heavier from year to year, it occurred to him that definite meas- 

 urements of the rate of loss of buoyancy would be fruitful. They would 

 bear directly on the coefficient of diffusion of the imprisoned gas through 

 the liquid in which the diver is floating. It would be easily possible to 

 vary the liquids and gases, within and without, under conditions of an ac- 

 curately determinable diffusion gradient. Ultimately the transfer of single 

 molecules of a gas through the intermolecular pores of the liquid is in ques- 

 tion, so that the experiment might throw definite light on the molecular re- 

 lations involved. 



The experiments of the report now in preparation in Chapter I were made 

 during a period of eleven years with an ordinary glass Cartesian diver with 



