GENERAL MEETING. 5 
THE MONOCHROMATIC ABERRATION OF THE HUMAN EYE IN 
APHAKTIA. 
These two papers are complementary, and are published in the 
Archives of Ophthalmology, Vol. XII, No. 1. 
228TH MEETING. JANUARY 27, 1883. 
The President in the Chair. 
Thirty-seven members present. 
The Auditing Committee, appointed at the Annual Meeting, re- 
ported through its chairman, Mr. Antisell, that it had examined 
the accounts of the Treasurer for 1882, and found them correct. 
The report was accepted. 
The communication of the evening was by Mr. H. H. Bares on 
THE NATURE OF MATTER, 
and was discussed by Mr. W. B. Taytor and Mr. Powe tt. 
This paper is published in the Popular Science Monthly for 
April, 1883. 
229TH MEETING. FEBRUARY 10, 1883. 
The President in the Chair. 
Forty-two members and visitors present. 
It was announced that reports of the scientific proceedings would 
hereafter be furnished to Science. 
Mr. W. H. Datu announced that an opportunity would be 
afforded members to contribute to the Balfour Memorial Fund. 
A communication was then read by Mr. A. F. A. Kine on 
THE PREVENTION OF MALARIAL DISEASES, ILLUSTRATING, inter alia, 
THE CONSERVATIVE FUNCTION OF AGUE. 
[Abstract. ] 
The various theories thus far presented in explanation of the 
