vi CONTENTS. 



1880. P^^ 



Jimo 7. — General Monthly Meeting .. .. .. •• "^52 



July 5.— General Monthly Meeting .. .. .. •• '^^4 



Nov. 1.— General Monthly Meeting 456 



Dec. C— General Monthly Meeting 459 



1881. 



Jan. 21. — "Wauren De La Iiue, Esq. — The Phenomena of 

 the Eleetric Discharge with 14,400 Chloride of 

 Silver Culls (Index, p. 491) 461 



„ 28. — Dr. Arthur Schuster. — The Teachings of 



Modern Siiectroscopy .. .. .. .. 493 



Fch. 4. — Dr. Andrew Wilson. — Tlie Origin of Colonial 



Organisms .. .. .. .. .. .. 508 



„ 7.— General Monthly Meeting .. .. ., ..512 



„ 11. — Robert S. Ball, Esq. — The Distances of the 



Stars 514 



„ 18. — Sir John Lubbock. — Fruits and Seeds .. ,. 595 



„ 25. — Dr. J. S. Burdon-Sanderson. — Excitability in Plants 



and Amma\8 {Ahsfract deferred) 519 



j\I:ir. 4. — Sir William Thomson. — Ela^ticity viewed as 



possibly a Mode of Motion .. .. 520 



„ 7. — General Monthly Meeting .. .. 522 

 „ 11.— Shelford BiDWELL, Esq. — ScIcnium and its Appli- 

 cations to the Photophono and Tclejdioto- 

 ^.'nipliy 524 



1 . - Wm. II. Stonk.— Musical Pitch and its Dctc rnniiii- 



ti<'» .. 536 



„ 25.— Alexander Buihan, Esq.— The Weather and 



Health of London .. .. .. (^29 



