XXI 



I.-TITIIO FhaMLIH 



Replies to a Circular in relation to the Occurrence of an unusual Me- 

 teoric Display on the ,3th of November , ,834, addressed by the 

 Secretary of War to the Military Posts of the United States , ^vith 

 other facts relating to the same qnostion ; by A. D. Bache. 8." 

 Obseivations upon the facts leccnily presented by Professor Olmsted, in 

 relation to Meteors seen on the i3th of NovemJjer, i834 ; by A. D. Bache 

 Notes and Diagrams, illustrative of the Directions of the Forces acting 

 at and near the surftAcc of the Earth, in dilferent parts of the 

 Brunswick Tornado of June 19th ,835; by A. D. Bache. 4." 

 Observations to determine the Magnetic Dip at Baltimore, Philadelphia 

 New-York, West-Point, Providence, SpringGeld and Albany ; by 

 A. D. Bache, and Edward H. Conrtenay. 4.° 

 On tlie relative horizontal intensities of terrestrial Magnetism at several 

 Places in the United States, with the investigation of corrections for 

 temperature, and comparisons of the methods of oscillation in full 

 and in rarefied air; by A. D. Bache, and Edward H. Courtenay. A " 



Repor-t of the Managers of the FrankUn Institute, of the State of Penn- .- .„«. 



sylvania , for the promotion of the Mechanic Arts , in relation to '" '^''"'''^" 



Weights and Measures. Philadelphia, Harding, i834 8° 

 General Report on the explosions of steam.],oilers, by 'a Committee 

 of the Franklin Institute of the State of Pennsylvania for the p,-o- 

 mot.on of the Mechanic Arts. Philadelphia, Sherman ct C, ,836 8 " 

 Mernoires de I'Academie Impenale des Sciences de Saint-Petersbourg 

 VI Sane. Premiere partie : Sciences mathemaliqucs et physiques , 

 lorn, 1, Livr. 4,0 et G ; Tome II, Livr. i" et 2". Saint-Peters- d. j'ieuoOurgo 

 boui-g, 1 836- 1 838, 4.° 



Memoires de I'Academie Imperiale des Sciences de Saint-Petersbou,- 



^^ Serie. Seconde partie: Sciences naturelles. Tome II, Livr. 3% 



4', 5' ct 6". Saint-Petcrsbourg, 1 836-1 838 4° 

 Memoires de I'Academie bnperiale des Sciences "de Saint-Petersbour.. 



VI Sene. Sciences Politiques, Ilistoirc, Philologie. Tome III, Livr 6- 



Tom. IV , Livr. i% 2" et 3°. Saint-Petersbourg, ,836-1838, A- ' 

 Me.no,res presentes >a I'Academie Imperiale des Scieiaces de Saint-Peters- 



boiMg par divers savans. Tome IIL Six Livr. ; Tom. IV , Livr. i' 



et y. Saint-Petersbourg, ,837, 4.° 

 Recueil des actes des seances publicines de I'Academie L des Sciences de 



i,amt-Petersbourg, lenues le 3o decembre ,836, et le 29 decembre 



1S37. Saint-Petersbourg, iSSn-iSSS , 2 vol. 4." 



