AMERICAN 
JOURNAL OF SCIENCE AND ARTS. 
[THIRD SERIES] 
Art. XXXIIL—Address of Dr. John L. LeConte, the retiring 
President of the American Association for the Advancement 0 of 
Science, at the meeting in August, 1875, at Detroit. 
THe founders ip science in America, and the other great 
students of nature, who have in previous years occupied the 
elevated position in which I now stand, have addressed you 
upon man, us subjects. In fulfilling the final apes 
— of knowledge. Others again have given you the 
istory of the developement of their respective branches of 
study, and their present condition, and have, in eloquent dic- 
tion, commended to your gratitude those who have established 
on a firm foundation the basis of our modern systems of inves- 
tigation. 
ae recent changes in our constitution, by which you are led 
ct from your two vice-presidents, and from the a 
of the Ghenies! Sub-section, addresses on the 
during the past year, restrain me from invading their sicliad 
fields of labor, by alluding to scientific work which has been 
ee since our last meeting. While delicacy forbids 
me from so doing, I am equally debarred from repeating to you 
the brief ee endeavored to give at a former meeting * 
* Proceedings Am. Assoc. Ady. Sci., xxi, Portland. 
Am, Jour. Sct.—Turrp —- Vou, X, No. 58—Ocr., 1875, 
Y 
