CONTENTS. 



Farther Remarks on the Mode of taking Lunar Oliservalions.290 



Illustrations and Corrections of two Papers on the Nature and 

 Laws of Friction, with a Refutation of ths Objections of Mr. 

 Meikle. • • 293 



Some Ohservations on the Formation of Mists in particular Sir 

 tuations. . . . . • • • • • • • • '^^" 



Further Evidence to prove the Existence of the Kraken in the 

 Ocean, and tending to show that this huge Creature is a Species 

 of Sepia or Squid '^Ot 



On the solid Excrement of the Boa Constrictor. . . 303 



Some further Remarks on Swalloivs. . . . . . . 321 



On Hypotheses proposed for explaining the Origin of Meteoric 

 Stones ; with Remarks on Mr. Murray's Letter on Aerolites 

 inserted in Phil. Mag. for last Jukj 336 



Reply to Mr. Edward Riddle's Remarks on Mr. Meiki.e's 

 Paper " On finding the Longitude by Lunar Ohservations." 



A Description of a new Military Bridge, that may he made of 

 short Pieces of Timber, and easily put together in any Situa- 

 tion. The same Method is applicable to other Uies. 347 



Memoir on a new and certain Method of ascertaining the Figure 



of the Earth by means of Occultations ofthefixtd Stars. 350, 

 J -J •" 40tj 



Dissertation on Water Snakes, Sea Snakes, and Sea Serpents. 



Defence of English Periodical Mathematical IVorks, in Reply 

 to Mr. Meikle. 367 



On the Figure of the Earth. . . . . . . . . 371 



Account of some remarkable Facts observed in the Deoxidation 

 of Metals, particularly Silver and Cupper. ., .. 376 



Singular Anecdote of the Spider, with Observations on the 

 Cftility of Ants in destroying venomous Insects. . . 378 



Continualinn of the Reply to Mr. Riddle's Remarks on Mr. 

 Meikle's Paper " On the Lunar Observations " . . 401 



Report from the Select Committee appointed to consider the Va- 

 lidity of the Doctrine of Contagion in the Plague. . . 417 



