56 JOURNAL OF THE [April^ 



5. Vertical section of Necturus, showing glandular develop- 

 ments. 



6. Feather germ of Chick at nine days. 



7. Vertical section of human scalp, showing roots of hairs. 

 Exhibits Nos. 3-7 by George William Kosmak. 



Dr. Bashford Dean stated that one of the most important dis- 

 coveries in this line announced during the past year was that by 

 Miss Julia C. Piatt, professor at Mt. Holyoke Seminary, to the 

 effect that the head cartilage is derived from the ectoderm of the 

 embryo. 



Meeting of February 20, 1894. 



The meeting was held in Hamilton Hall, Columbia College. 

 The President, Mr. Charles S. Shultz, in the chair. 



Twenty-eight persons were present. 



On motion the routine business of the Society was deferred 

 until the next meeting. 



Dr. Alexis A. Julien read a paper entitled " A Silicified Form 

 of a New Species of Fungus in Wood from the Petrified Forest 

 near Cairo, Egypt." This paper was illustrated by numerous 

 excellent photographic lantern views, and by objects under five 

 microscopes, consisting of mineralogical sections, prepared with 

 remarkable carefulness and skill by Mr. T. B. Briggs to exhibit 

 the desired characteristics of the material referred to in the paper. 



Meeting of February i6th, 1894. 



The President, Mr. Charles S. Shultz, in the chair. 



Twenty-eight persons present 



On motion it was resolved that the proposed amendment of the 

 By-Laws be laid on the table. 



On motion it was resolved that a committee of five be appointed 

 by the Chair to report on amendment of the By-Laws. The fol- 

 lowing persons were so appointed: Messrs. William G. De Witt, 

 Walter H. Mead, Horace W. Calef, Dr. Frank D. Skeel, Dr. 

 Edw. G. Love. 



On motion it was resolved that the above committee be in- 

 structed that, if the By-Laws are not explicit on this subject, they 



