944 



SCIENCE. 



[N. S. Vol. XXIII. No. 599. 



SOCIETIES AND ACADEMIES. 



THE NORTH CAROHNA ACADEMY OF SCIENCE. 



The fifth annual meeting of the North 

 Carolina Academy of Science was held at West 

 Ealeigh, May 18 and 19. The following offi- 

 cers were elected for the ensuing year: 



President — Dr. Collier Cobb, of the State Uni- 

 versity at Chapel Hill. 



Vice-President — Professor J. L. Lake, of Wake 

 Forest College. 



Secretary-Ti-easurer — Dr. F. L. Stevens, A. and 

 M. College, West Raleigh, N. C. 



Members of the Executive Committee — Mr. 

 Franklin Sherman, Jr.; Dr. W. C. Coker, of 

 Chapel Hill, and Professor John F. Lanneau, of 

 Wake Forest College. 



The following papers were presented: 



Autophyto graphs : Collier Cobb. 



Name suggested by C. H. White (Am. Jour. 

 Sci.j March, 1905) for a plant record formed 

 by the extraction of coloring matter through 

 decay of plant, or a black deposit reproducing 

 perfectly the leaves of plants, illustrated by 

 specimens from the neighborhood of Wilkes- 

 boro, N. C, and elsewhere. Such records 

 should also have been made in geological past, 

 and Dr. Cobb reported fern autophytographs 

 on Carboniferous rocks from near Pottsville, 

 Pa., exhibiting two different specimens of the 

 same. 



Notes on the Variation in the Number of 

 Eggs or Young produced hy some American 

 Snahes: C. S. Brimley. 

 This paper gave tlie largest, smallest and 

 average number of eggs or young produced, 

 according to the author's experience, by the 

 following species of North American snakes — 

 Eutoenia sirtalis, Eutwnia saurita, Natrix 

 sipedon, Haldea striatula, Btoreria dehayi, 

 Storeria occipitomaculata, Virginia valerim, 

 Bascanium constrictor^ Heterodon platyrhinus, 

 Ophiholus getulus, Cyclophis wstivus, Coluber 

 quadrivittatus, Carphophiops amcenus, An- 

 cistrodon contortrix, Ancistrodon piscivorus. 

 Comments are also made on the confusion 

 caused by the application locally of the same 

 popular or local name to different species of 



snakes in different places, and by different 

 names being applied to the same species. 



Dr. W. C. Coker explained with blackboard 

 drawings the development and the nuclear 

 changes within the embryo sac of the ordinary 

 poplar tree, Liriodendron. The special point 

 of interest was that though this tree is very 

 ancient geologically, yet its embryo sac pre- 

 sents no unusual features. 



Sugaring for Moths: C. S. Bkimley. 



The author's experience in sugaring for 

 moths in July, August and September, 1905, 

 were given. Names the mixtures employed 

 and how applied, and what species of moths 

 and other insects were captured. Notes that 

 a very large proportion of the attracted moths 

 were species of economic importance, viz., the 

 army-worm and cutworm moths, which do 

 considerable injury to field and garden crops. 

 Notes what insects were attracted to the 

 sugared patches in the daytime and also that 

 rough-barked trees were better to sugar than 

 smooth-barked ones. 



Bhcetic Flora of Moncure Shales: Collier 



Cobb. 



Specimen of Liriodendron^ ?) reported from 

 Deep River Trias in 1904 in association with 

 Macrotooniopteris, and then regarded by 

 speaker as Lower Trias, led to the tracing of 

 this bed eight miles northeastward through 

 Lockville to Moncure, and to the discovery 

 of one nearly complete Liriodendron leaf and 

 several fragments in association with lycopods, 

 conifers and equisetacese, with many examples 

 of more modern plants yet to be determined, 

 constituting what is probably a transition 

 flora. Many of the specimens were from a 

 well recently dug by the Seaboard Air Line 

 Railway. 



The Influence of Citrous Stocks on Scions: 



Mr. C. F. Reimer. 



An investigation was made in Florida to 

 determine whether the stock influences the 

 scion in any way. The following outline 

 covers most of the work which was done: 



1. Influence on rate of growth — (a) in diam- 

 eter, (fc) in height. 



2. On shape of tree. 



