1890. | NEW YORK ACADEMY OF SCIENCES, 23 
After the reading of the paper, Dr. NEwBERRY made some 
pertinent remarks on the geology of the group, and spoke of the 
disputes in progress as to the rise or subsidence of the islands. 
Dr. Britton asked if: the soil contained much oxide of iron. 
In reply, Dr. NorTHROP stated that he had been unable to make 
any exact analyses, from lack of time, but that on treating the 
various specimens of soil with dilute hydrochloric acid a consid- 
erable variation in them was shown. Some specimens dissolved 
completely, others left a large residue; these residues, tested be- 
fore the blow-pipe, showed varying amounts of iron. Dr. New- 
BERRY explained that the limestone rocks were disintegrated by 
waters charged with carbonic acid; the lime being dissolved out 
left the silica, and oxide of iron, and alumina; these latter sub- 
stances formed the nucleus of a soil. If the original rock con- 
tained much oxide of iron, we would be prepared to find it in 
the resulting soil. Dr. Botton remarked that some of the 
specimens exhibited were similar to the rhizomorphs occurring 
on the Island of Niihau, H. I. 
The following names were proposed for Resident Member- 
ship: 
FREDERICK STARR, PH.D., 
by Dr. Bouton. 
Mrs. THEODORE SUTRO, 
Dr. JEANNETTE B. GREENE, 
by Dr. NEWBERRY. 
October 20th, 1890. 
STATED MEETING. 
The President, Dr. NEWBERRY, in the chair. 
About fifteen persons present. 
Minutes of October 13th were read and approved. 
The following nominations were made for Resident Member- 
ship: 
