1887.] NEW YORK ACADEMY OF SCIENCES. 147 



Section IX. — Semi-Contennial Celebration. 

 Section X. — Change of Name and Constitution. 

 Section XI. — Membership. 



Section XII. — Charter, Order of Court, Constitution and By- 

 Laws. 



Index of Persons. 

 Genera] Index. 



ILLUSTEATIOXS. 



Portraits. 



John S. Newberry, John B. Beck, James E. De Kay, Charles 

 A. Joy, Samuel L. Mitchill, Joseph Delafield, John Torrey, 

 William Cooper, Robert H. Brownne, William C. Redfield, 

 Benjamin N. Martin, Asa Gray, Charles M. Wheatley, Thomas 

 Bland, John C. Jay, John H. Redfield, Robert Dinwiddle, 

 Thomas Egleston, Alexis A. Julien, John II. Hinton, H. Car- 

 rington Bolton, Albert R. Leeds, Daniel S. Martin, Oliver P. 

 Hubbard, Louis Elsberg, William P. Trowbridge, Herman L. 

 Fairchild. 



Buildings. 



College of Physicians and Surgeons in Barclay Street, New 

 York Institution, New York Disjiensary, the Lyceum Building, 

 Stuyvesant Institute, University Medical College in Fourteenth 

 Street, Hamilton Hall. 



Dk. Henuy H. Rusby read a paper: 



CONCLUDING OBSERVATIONS IN A SCIENTIFIC JOURNEY ACROSS 

 SOUTH AMERICA, FROM THE ANDES TO THE MOUTH OF THE 

 AMAZON. 



May 23, 1887. 

 Stated Meeting. 



First Vice-President, Prof. Oliver P. Hubbard, in the 

 chair. 



A large audience present in the East Lecture Room of the 

 Library Building, Columbia College. 



The fifth lecture of the Popular Lecture Course was delivered 

 by Prof. W. P. Trovtbridge. 



