NATURAL HISTORY. MISCELLANY. 625 
ponding in time with the period of the greatest continental elevation, 
during which period the glaciers would naturally flow in the direction of 
completely filled, and the surface elevated above them from one to two 
hundred feet, and even more. Then comes another continental elevation, 
the beginning of the present status of appearances. — L. J. Stroop, 
Waxahachie, Ellis County, Texas. 
MICROSCOPY. 
AMERICAN Micnoscorzs. — The able refutation by your correspondent, 
C. S., in your issue of September, of the statements made by Dr. Hagen, 
Writers, as to drive them to the most obviously, to use Dr. Hagen's own 
mild epithet, “ comical” conclusions. 
Referring to German stands, for whose glorification Dr. Hagen seems 
to have written the papers in question, any one who, like myself, has 
AMER. NATURALIST, VOL. IV. 79 
