166 



C. Klein, Mineralogische Mittheilungen XIII. 



was über das Mineral namentlich in optischer Hinsicht bisher 

 und besonders auch in der neuesten Zeit bekannt geworden 

 ist, vorausschicke. 



L Literaturübersieht und historische Einleitung'. 



1. D. Brewster: On the laws of Polarisation and donble refraction 

 in regularly crystallized bodies. Philosophical Transactions of the 

 Royal Society of London. 1818. Part I. p. 199 n. f. (Abgeschlossen 

 1. Juni 1817, gelesen 15. Januar 1818.) 



2. — On a New Optical and Mineralogical Structure, exhibited in 

 certain specimens of Apophyllite and other niinerals. The Edinburgh 

 Philosophical Journal. 1819. Vol. I. No. 1. p. 1 u. f. (Jan. 29, 1819.) 



3. — On the Connection between the Primitive forms of Crystals 

 and the Number of their Axes of Double Refraction. Memoire of 

 the Wernerian Natural History Society. 1821. Vol. III for the 

 years 1817—1820. (Read 20 th March 1819.) — Vergl. auch Gilbert's 

 Annalen. 1821. Bd. LXIX. p. 1 u. f. im Auszuge. 



4. J. F. W. Herschel : On the action of crystallized bodies on honio- 

 geneous light, and on the causes of the deviation froin Newton's 

 scale in the tints which many of theni develope on exposure to a 

 polarised ray. Philosophical Transactions of the Royal Society of 

 London. 1820. Part I. p. 45 u. f. (Read December 23, 1819.) 



5. — On certain remarkable Instances of deviation from Newton's 

 Scale in the Tints developed by Crystals, with one Axis of Double 

 Refraction, on exposure to Polarized Light. Transactions of the 

 Cambridge Philosophical Society. 1821. Vol. I. Part 1. p. 21 u. f. 

 (Read May 1, 1S20) und The Edinburgh Phüosophical Journal. 1821. 

 Vol. IV. No. 8. p. 334 u. f., 1821. Vol. V. No. 10. p. 334 u. f. 



6. D. Brewster: Additional Observations on the Connection between 

 the Primitive forms of Minerals and the Number of their Axes of 

 Double Refraction. Memoirs of the Wernerian Natural History 

 Society. 1821. Vol. III for the years 1817—1820. (Read 5 th August 



1820. ) — Vergl. auch Gilberts Annalen. 1821. Bd. LXIX. p. 1 u. f. 

 im Auszuge. 



7. J. F. W. Herschel: On a remarkable Peculiarity in the Law of 

 the extraordinary Refraction of dilferently-coloured Rays exhibited 

 by certain Varieties of Apophyllite. Transactions of the Cambridge 

 Phüosophical Society. 1822. Vol. I. Part II. p. 241 u. f. (Read May 7, 



1821. ) — Im Auszug in The Edinburgh Philosophical Journal. 1821. 

 Vol. V. No. 9. p. 213 u. f. 



8. D. Brewster: Account of a Remarkable Structure in Apophyllite 

 with Observations on the Optical Peculiarities of that Mineral. 

 Transactions of the Roj 7 al Society of Edinburgh. 1823. Vol. IX. 

 Part 2. p. 317 u. f. (Read 21 st April 1817, 5th March and 17 th De- 

 cember 1821.) 



