226 British Association for the Advancement of Science. 



Reports. — 1. The Rev. George Peacock has undertaken to present 

 to the next meeting a report on the recent progress of Mathematical 

 Analysis, in reference particularly to the differential and integral 

 calculus. 



2. Professor Airy has undertaken a report on the state and pro- 

 gress cf Astronomical Science, in reference particularly to Physical 

 Astronomy. 



3. J. W. Lubbock, Es(|. has consented to furnish such information 

 respecting the data and desiderata for calculating the time and height 

 of High-water as he may be able to offer. 



4. James D. Forbes, Esq. has undertaken to present a report on 

 the present state of Meteorological Science. 



5. Dr. Bre\yster has undertaken a report on the progress of Opti- 

 cal Science. 



6. The Rev. Robert Willis has undertaken a report on the state of 

 our knowledge concerning the Phsenomena of Sound, in reference 

 especially to the additions recently made to it. 



7. The Rev. Professor Powell has undertaken a similar report re- 

 specting the Phaenomena of Heat. 



8. The Rev. Professor Gumming has undertaken a report on 

 Thermo-Eiectricity and on the allied subjects, in reference to the 

 discoveries recently made in them. 



9. James F. W. Johnston, Esq. has undertaken a report on the 

 recent progress of Chemical Science, especially in foreign countries. 



10. The Rev. Professor Whewell has undertaken a report on the 

 state and progress of Mineralogical Science. 



)i. Robert Stevenson, Esq. has undertaken the report recom- 

 mended by the Geological and Geographical Committee, on the 

 waste and extension of the land on the east coast of Britain, and on 

 the question of the permanence of the relative level of the sea and 

 land. 



12. Professor Lindley has undertaken to give an account of the 

 prrncipal questions recently settled, or still agitated, in the Philo- 

 sophy of Botany. 



Researches. — There is reason to hope that the earnest wish ex- 

 pressed by the Mathematical and Physical Committee, that a Register 

 of the Thermometer, during every hour of the day and night, should 

 be kept at some station in the South of England, will be realized at 

 Plymouth under the superintendence of Mr. Harvey, with the en- 

 lightened concurrence of those who have the power of enabling him 

 to render ^his public service to science. 



The law of the decrease of Temperature with increasing elevations 

 in the atmosphere, will be illustrated by a continuation of experi- 

 ments with balloon s by the Earl of Minto. 



The secretaries of the Yorkshire Philosophical Society have com- 

 menced the observations recommended, on the comparative quanti- 

 ties of rain falling on the top of York Minster and near its base ; and 

 the Society has formed a Meteorological Committee, by wliose labours 

 other researches, which have been recommended in that branch of 

 science, may be expected to be advanced. 



The 



