336 Trans. Acad. Sci. of St. Louis. 



Meteorology, continued. 



Lindsay, G. A. [The annual rainfall and temperature of the United 



States]. 20:xxviii 

 Nipher, F. E. [Engelmann's work in meteorology]. 18:xlviii 

 Mineralogy. 



McCourt, W. E. [Diamonds in Arkansas]. 18:lix 



Thacher, A. [The present and probable future of the Missouri mining 



industry]. 12 : xxii 

 Wheeler, H. A. [Oil fields of Illinois]. 20 : xxvii 



[The occurrence of oil and gas about St. Louis]. 18 : xxxix 



Meteorites. 



Keyes, C. H. Abundance of meteorites on the Painted Desert; 

 and its bearing upon the planetesimal hypothesis of the origin 

 of the earth. 19 : 131-150 

 Nipher, F. E.— See Wheeler, H. A. 



Wheeler, H. A. and F. E. Nipher. [Sulphur-balls or Nigger-heads]. 

 12 : xxiii 

 Morphology.— See Biology. 

 Natural resources.— See conservation. 

 Obituaries. — See Biographic notices. 

 Palaeontology. — See Geology. 

 Philosophy. 



Lovejoy, A. 0. [Some aspects of Darwin's influence upon modern 



thought]. 18:1 

 Swift, E. J. [How we learn to do things]. 18 : xxxvii 

 Photography. 



Cramer, G. [Color photography]. 18 : xxvii 

 Curtis, C. B. [Color photography]. 12 : xxix 

 Nipher, F. E. [Positive photography]. 11 : xviii, xx, xxii, xxv 



The relation of direct to reversed photographic pictures. 11 j 



51-61. pL 2-10 

 Powrie, J. H. [Florence heliochromic plate]. 15:xl 

 Wallace, R. J. [The physical possibilities and limitations of "Auto- 

 crom " color photography]. 18 : Ix 

 Physics. 



Chessin, A. S. [On the motion of a top, taking into account the rota- 

 tion of the earth]. 11 : xxxiv 



On the motion of gyroscopes. 12 : 21-34. xviii 



On the true potential of the force of gravity. 12 : 19 



[The harmony of tone and color]. 11 : xxxv 



[The strains and stresses in a rotating thin circular disc]. 13 : 



xxxii 

 Langsdorf, A. S. [Electric waves]. 12 : xxii 

 [Hysteresis of the electric current]. 17 : xxvii 



[Lightning and lightning protection]. 18 : Ixi 



[The fatigue of insulation]. 18 : xxxvi 



[Use of arrow heads in vector diagrams]. 17 : li 



Nipher, F. E. [A new device for measuring the pressure of wind on 

 buildings or of air in pipes]. 16 : cxvi 



[Action of ball lightning discharges on wood]. 11 : xxvi 



