142 



Presents. 



[Feb. 24, 



as a receiver. The articulation seems to have been about the same 

 in quality as when the new transmitter is used with a Bell receiver. 

 These new experiments bear out all that Mr. Preece said about the 

 rapidity of variation of temperature which can be produced in a fine 

 platinum wire. They may also be perhaps of some interest from other 

 points of view ; but they are not likely to lead to any results of 

 practical importance. It is probable from the theory of the instru- 

 ment that the tones are raised an octave, as is also the case in the 

 Preece receiver. 



Presents, February 24, 1887. 



Transactions. 



Baltimore : — Johns Hopkins University. Studies. Historical 

 and Political Science. Fifth Series. No. 3. 8vo. Baltimore 

 1887; 11th Annual Report. 8vo. Baltimore 1886. 



The University. 



Berlin : — Physikalische Gesellschaft. Fortschritte der Physik 

 im Jahre 1879. Jahrg. XXXV. 8vo. Berlin 1885-86. 



The Society. 



Cambridge, Mass. : — Harvard College. Annual Reports, 1885-86. 



8vo. Cambridge, Mass. 1887. The College. 



Delft; — Ecole Polytechnique. Annales. Tome II. Livr. 3-4. 4to. 



Leide 1886. ' The School. 



Gottingen : — Konigl. Gesellschaft der Wissenschaften. Nach- 



richten. 1886. Nro. 1-20. 8vo. Gottingen. The Society. 



Heidelberg : — Naturhistorisch-Medicinischer Yerein. Yerhand- 



lungen. Band III. Heft 3. 8vo. Heidelberg 1884. 



The Association. 



University. Almanach. 1886. 12mo. Heidelberg; Inaugural- 

 Dissertationen, &c, 1886. 8vo. Heidelberg, &c. ; Urkundenbuch 

 der Universitat Heidelberg. 2 Vols. Large 8vo. Heidelberg 

 1886 ; Die Alteste Zeit der Universitat Heidelberg 1386-1449. 

 8vo. Heidelberg 1886 ; Festrede zur Fiinfhundertjahrigen 

 Jubelfeier. 4to. Heidelberg 1886 ; Festschrift der Badischen 

 Gymnasien. 4to. Karlsruhe 1886 ; Beitrage zu einer Biogra- 

 phie Ottheinrichs (Festschrift). 4to. Heidelberg 1886 ; Ueber 

 die Lehenbucher der Kurfiirsten und Pfalzgrafen Friedrich I. 

 und LudwigV. 4to. Karlsruhe 1886 ; Ruperto-Carola: illustrirte 

 Fest-Chronik der Y. Sacularfeier der Universitat Heidelberg. 

 Folio. Heidelberg 1886. The University. 



Liege : — Societe Royale des Sciences. Memoires. Ser. II. Tome 13. 

 8vo. Bruxelles 1886. The Society. 



London : — General Medical Council. Third Report of the Statistical 

 Committee. 8vo. London 1886. The Council. 



