CONTENTS 



The Lactakias of N^orth Caeolina. W. C. Coker 1 



Proceedings of the Seventeenth Annual Meeting of the 



North Carolina Academy of Science 65 



Luminescence of Zircons. F. P. V enable 73 



The Sun's Eclipse, June 8, 1918: Question. Jolm F. 



Lanneau 76 



Alternation and Parthenogenesis in Padina. Jas. J. 



Wolfe 78 



The American Pitcher-Plants. Roland M. Harper 110 



Extension of the Range of Prunus Umbellata Into North 



Carolina. /. S. Holmes 126 



Additions to the Arborescent Flora of North Carolina. 



W. W. Ashe 130 



Report of An Investigation as to the Cause of Death of 

 Chicks in Shell in Artificial Incubation. H. B. 

 Arhuckle 141 



Brief Comparison of the Herpetological Faunas of North 



Carolina and Virginia. C. 8. Brimley 146 



Elimination from and Additions to the North Carolina 



List of Reptiles and Amphibians. C. S. Brimley 148 



A Visit to Smith Island. W. C. Col'er ' 150 



Review 154 



Industrial Applications of Zirconium and Its Compounds. 



F, P. Tenable 157 



The Hydnums of North Carolina. W. C. Coher 163 



A New Species of Amanita. H. C. Beardslee 108 



