CONTENTS — {continued) . 



PAGE 



II. On Remains of a large extinct Lama (Palauchenia magna, Owen) from 

 Quaternary deposits in the Valley of Mexico. By Professor Owen, 



F.R.S. &c 405 



III. On the Proof of the Law of Errors of Observations. By M. W. Crofton, 



F.R.S .... 406 



April 29, 1869. 



I. On a certain Excretion of Carbonic Acid by Living Plants. By J. 

 Brottghton, B.Sc , F.C.S., Chemist to the Cinchona Plantations of the 

 Madras Government 408 



II. On the Causes of the Loss of the Iron-built Sailing-ship ' G-lenorchy.' By 



Archibald Smith, Esq., M.A., LL.D., F.R.S 408 



III. Spectroscopic Observations of the Sun. — No. IT. By J. Norman Lockter, 



F.R.A.S 415 



TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



