UNIVEE.SITY of VIRGINIA PUBLICATIONS 



The Proceedings and Transactions of tlie Philosophical Society of the University 

 of Virginia are published in the form'of Bulletins and offefed in exchange forthe pub- 

 lications of learned societies, institutions, universities an^ libraries. The Bu.lletiiis 

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

 up into volumes, consecutively paged, of about 40&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. Comniuni- 

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



Thus far have been published the following papers. 



BCIBNTIPIC section' 



1. Intermediate (Quartz Monzonitic) Character oif the Central and Southern Appa- 



lachian 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 $0.75. 



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



Vol. I, pp. 41-44. Price $0.25. 



3. On the Maximum and Minimum Values of' a LiiiearFunction 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- 1. PP- 85-126. Price J0.75. 

 6. On the Flow of Water in PipeS, Conduits and Open Channels and the Losses of 

 E;)ergy 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. Ec^hols. Vol. I, pp. 187-199. Price $0.25. 



7. A Contribulaon to the Geology: and Mineralogy of Graves Mountain, Geoigia. 



By Thomas L. and J. Wilbur Watson. Vol. I, N'o, 7^ Price $0.25. ^v 



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



Vol. I, No. 8. Price $0.25. 



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



By W. H. Echols. Vol. I, No. 9, Price $0.25. \: 



10. The Flow of Water in Artificialphannels: Clean P'ipes. With three Plates. By 



W.H.Echols. Vol. I, No. la. Price $0.50. _ < 



11. Zirconiferous Sandstone near Ashland, Virginia, ^th a Slimmary of the Prop- 



erties.'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. l2. Price $0.40. 



13. The Evolutionary Constructipn 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. , , 



14. Magmatic Names Proposed in the Quantitative Sjrstem of Classification for some 



New Roek Types in Vkginia. By Thomas L. Watson and Stephen Taber. 

 Vol. I, No. 14. Price $0.25. 



Continued on page 3 of cover 



