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  ft 
  

  

  CONTENTS. 
  Xlll 
  

  

  ARTICLE 
  XI. 
  

  

  Collection 
  of 
  Observations 
  on 
  the 
  Solar 
  Eclipse 
  of 
  November 
  30th, 
  1834, 
  made 
  at 
  

   Philadelphia, 
  Haverford, 
  West-Hills, 
  Baltimore, 
  the 
  University 
  of 
  Virginia, 
  Nor- 
  

   folk, 
  Cincinnati 
  and 
  Nashville. 
  - 
  - 
  - 
  - 
  - 
  . 
  - 
  - 
  233 
  

  

  ARTICLE 
  XII. 
  

  

  De 
  Lingua 
  Othomitorum 
  Dissertatio 
  ; 
  Auctore 
  Emmanuele 
  Naxera, 
  Mexicano, 
  Acade- 
  

   mic 
  Literaria? 
  Zacatecarum 
  Socio. 
  - 
  - 
  - 
  - 
  - 
  249 
  

  

  ARTICLE 
  XIII. 
  

  

  Practical 
  Rule 
  for 
  Calculating, 
  from 
  the 
  Elements 
  in 
  the 
  Nautical 
  Almanac, 
  the 
  Cir- 
  

   cumstances 
  of 
  an 
  Eclipse 
  of 
  the 
  Sun, 
  for 
  a 
  Particular 
  Place. 
  By 
  John 
  Gummere, 
  

   Teacher 
  of 
  Natural 
  Philosophy 
  and 
  Mathematics 
  in 
  the 
  Friends' 
  School 
  at 
  Haver- 
  

   ford, 
  Pennsylvania. 
  - 
  - 
  - 
  -'.--.'.*■ 
  - 
  - 
  297 
  

  

  ARTICLE 
  XIV. 
  

  

  Contributions 
  to 
  the 
  Geology 
  of 
  the 
  Tertiary 
  Formations 
  of 
  Virginia. 
  By 
  William 
  

   B. 
  Rogers, 
  Professor 
  of 
  Natural 
  Philosophy 
  in 
  the 
  University 
  of 
  Virginia, 
  and 
  

   Henry 
  D. 
  Rogers, 
  Professor 
  of 
  Geology 
  in 
  the 
  University 
  of 
  Pennsylvania. 
  - 
  319 
  

  

  ARTICLE 
  XV. 
  

  

  On 
  the 
  Difference 
  of 
  Longitude 
  of 
  several 
  places 
  in 
  the 
  United 
  States, 
  as 
  determined 
  

   by 
  Observations 
  of 
  the 
  Solar 
  Eclipse 
  of 
  November 
  30th, 
  1834. 
  By 
  Edward 
  H. 
  

   Courtenay, 
  Professor 
  of 
  Mathematics 
  in 
  the 
  University 
  of 
  Pennsylvania. 
  - 
  - 
  343 
  

  

  ARTICLE 
  XVI. 
  

  

  Observations 
  on 
  Sulphurous 
  Ether, 
  and 
  Sulphate 
  of 
  Etherine 
  (the 
  true 
  Sulphurous 
  

   Ether). 
  By 
  R. 
  Hare, 
  M.D., 
  Professor 
  of 
  Chemistry 
  in 
  the 
  University 
  of 
  Penn- 
  

   sylvania. 
  .'...'- 
  . 
  . 
  .. 
  .. 
  . 
  . 
  347 
  

  

  VOL. 
  v. 
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  d 
  

  

  