758 



ADDITIONS. 



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Spottiswoode, William. 31. On a geometrical 

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Squire, Thomas. 4. On contemporaneous mete- 

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5. On the occultation of Aldebaran, 16 



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Stadeler, G. 31. Ueber den Thonerdegehalt 

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 To No. 1 add reference : 

 Erdm. Journ. Prak. Chem. XXXIX, 1846, 



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Stanistreet, John. Total eclipse of the Sun 28 

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 Steinacher, Philippe Anthony. 8. Observa- 

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9. Preparation d'un carbonate de zinc bien 



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To No. 3 add reference : 

 Van Mons, Journ. de Chimie, VI., 1804, 



pp. 88-91. 



Stephens, Henry Oxley. 10. Sur les maladies 

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Stevenson, : 



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Entom. Soc. Proc. 1844, p. 120. 

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Stipriaan-Luiscius, Abraham van. 10. Ver- 

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Stokes, John. 2. On some optical phenomena. 



Phil. Mag. VL, 1829, pp. 416-418. 

 Story-Maskelyne. See Maskelyne. 

 Strombeck, August von. 36. [Flammenmergel 



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37. [Belemnitellen in Norddeutschland.] 



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 490-492. 



Stromeyer, August : 



To No. 8 add reference : 

 Erdm. Journ. Prak. Cbem. LXXVL, 1859, 



pp. 27-31. 



Student. [Pseudon.~] On FOUCATJLT'S pendulum 

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Sturgeon, William. 70. An account of an 

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5. Einige Bemerkungen u'ber das nothige 



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Suffrian, E. 21. Zur Kenntniss der African- 

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 1857, pp. 57-256. 



Svanberg, Jons. 18. Schwedische Gradmessung. 

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 XTV., pp. 210-224, 327-333. 

 Svanberg, Lars Fredrik : 

 To No. 2 add reference : 

 Erdm. Journ. Prak. Chem. X., 1837, pp. 



494-500. 



Swan, William. 17. On a new method of ob- 

 serving the spectra of stars. Phil. Mao-. XL, 

 1856, pp. 448-450. 



To No. 6 add reference : 



Astron. Soc. Mem. XXL, 1852, pp. 72-75. 

 Swinburne, Henry : 



To No. 1 add reference : 



Geogr. Soc. Journ. I., 1832, pp. 258-262. 

 Sylvester, James Joseph. 113. On an extension 

 of Sir John WILSON'S theorem to all numbers 

 whatever. Phil. Mag. XIIL, 1838, p. 454 : 

 XIV., 1839, pp. 47-48. 



114. On a porismatic property of two conies 



having with one another a contact of the third 

 order. Phil. Mag. XXXVLL, 1850, pp. 438- 

 439. 



115. Demonstration of the theorem that 



every homogeneous quadratic polynomial is 

 reducible by real orthogonal substitutions to the 

 form of a sum of positive and negative squares. 

 Phil. Mag. IV., 1852, pp. 138-142. 



