— 22 — 



Mineralogy — Continued. 



Leonhard, A. V. (Pseudomorphs) . 4:2 $2.00 



Owen, R. (Rock salt, near New Iberia, La.) 2:2 " 



Sander, E. (Gold at Golden City, Ark.). 5 : 1-2 4.00 



(Rock salt from Vermillion bay, La.). 2 : 3 2.00 



Sharwood, W. (East Bradford Allanite). 1:4 ' 

 Shumard, B. F. (Oil springs in Ray and Carroll counties, Mo.). 



2:2 

 Wheeler, H. A. (Bituminous coal from Lower Silurian). 4:4 " 

 (New locality for Pickeringite). 4:4 " 



Note on the occurrence of blende in lignite. 7:4 .2 



■j 



Recent additions to the mineralogy of Missouri. 7:5 .50 



Meteorites. .25 



Broadhead, G. C. (Meteor of December 9, 1875). 3 : 3 2.00 

 The meteor of December 27, 1875. 3:3 " 



(Meteor of January 3, 1877). 3:4 " 



Clark, M. L. (Meteorite near mouth of Osage river). 1:4 " 

 Hinrichs G. (Meteor and meteorites of Forest City, la.). 



5 : 3-4 4.00 



Holmes, N. (Abstract of Haidinger on meteorites). 2:1 2.00 



(Meteoric iron found in Nebraska). PI. XXI. 1:4 " 



Prout, H. A. (Nebraska meteorite). 2:1 " 



Shumard, B. F. Notice of meteoric iron from Texas. 1:4 " 

 (St. Louis meteorite). 2:1 '• 



Morphology. — See Biology. 



Obituaries. — See Biographic notices. 



Palaeontology. — See Geology. 



Philosophy. 



Wislizenus, A. Thoughts on matter and force. 2:2 " 



Photography. 



Nipher, F. E. (Electricity and photographic plates). 7:20. .50 



(Electricity and photographic plates). 10:11 f( 



On certain properties of light-struck photographic plates. Pis. 



XII-XVII. 10 : 6 " 

 (Negatives printed by contact from a lantern slide or positive 



picture, by the light of a 300 incandescent lamp). 11 : 11 .25 



(Positive photography). 10:11 .50 



11:11 .25 

 Positive photography with special reference to eclipse work. 



10:9 .10 

 The relations of direct to reversed photographic pictures. Pis. 



II-X. 11 : 4 .75 

 (Zero photographic plate). 10:11 .50 



Physics. 



Chessin, A. S. (The harmony of tone and color). 11:11 .25 



Curtman, C. O. (Light in vacuo). 3:1 2.00 



Eads,J. B. (Explanation of rotoscope). 1:1* 



* Exhausted. 



