UNIVERSITY OF VIRGINIA PUBLICATIONS 



The Proceedings and Transactions of the Philosophical Society of the University 

 of Virginia are published in the form of Bulletins ftnd offered in exchange for the pub- 

 lications of learned societies, institutions, universities and libraries. The Bulletins 

 are issued at irregular intervals in the form of separate papers. These arc to be made 

 up into volumes, consecutively paged, of about 400 pages each, for each of the Scien- 

 tific, Humanistic and Medical Sections. Separate numbers may be purchased from 

 the Distribution Committee, to whom remittances should be made. Communi- 

 cations should be addressed to Dr. Thomas L. Watson, University, Virginia. 



Thus far have been published the following papers. 



-SCIENTIFIC SECTION 



1. Intermediate (Quartz Monzonitic) Character of the Central and Southern Appala- 



chian Granites, with a Comparative Study of the Granites of New England 

 and the Western United States. By Thomas L. Watson. Vol. I, pp. 1-40. 

 Price S0.75. 



2. On ChemieaT Interaction of Substances in the Solid State. By J. W. Mallet. 



Vol. I, pp. 41-44. Price S0.25. 



3. On the Maximum and Minimum Values of a Linear Function of the Radial Co- 



ordinates of a Point with respect to a Simplicissimum in Space of n Dimensions. 

 By W. H. Echols. Vol. I, pp. 45-84. Price $0.75. 



4. New Positions of the Stars in the Huyghenian Region of the Great Nebula in 



Orion. By R. E. Wilson. Vol. I, pp. 85-126. Price $0.75. 



5. On the Flow of Water in Pipes, Conduits and Open Channels and the Losses of 



Energy Due to its Motion. By W. H. Echols. Vol. I, pp. 127-186. Price 

 ?0.75. " 



6. An Investigation of the Value of an Infinite Series on the Boundary of the Region 



of Convergence. By W. H. Echols. Vol. I, pp. 187-109. Price S0.25. 



7. A Contribution to the Geology and Mineralogy of Graves Mountain, Georgia. 



By Thomas L. and J. Wilbur Watson. Vol. I, No. 7. Price S0.25. 



8. An Unusual Occurrence of the Mineral Evansite. By John Sharshall Grasty. 



Vol. I, No. 8. Price 80.25. 

 0. On a Certain Quadratic Form with its Geometric and Kinematic Interpretations. 

 By W. H. Echols. Vol. I, No. 9. Price S0.25. 



10. The Flow of Water in Artificial Channels: Clean Pipes. With three Plates. By 



W. H. Echols. Vol, I, No. 10. Price S0.50. 



11. Zirconif erous Sandstone near Ashland, Virginia, with a Summary of the Properties, 



Occurrence, and Uses of Zircon in General. By Thomas L. Watson and Frank 

 L. Hess. Vol. I, No. 11. Price $0.50. 



12. Studies in Human Heredity. By H. E. Jordan. Vol. I, No. 12. Price $0.40. 



13. The Evolutionary Construction of the Imaginary Power of a Number and its 



Expression as the Exponential Function. -By W. H. Echols. Vol. I, No. 13. 

 Price $0.25. 



Continued on page 3 of cover 



