State Microscopical Society of Illinois · Chicago, Ill. : State Microscopical Society of Illinois · leaf 75
nge is the proper color for spectacles, instead ofgreen or blue, for persons with weak eyes, is beyond my comprehension. A roomin the hospital with which I am connected is lighted through orange coloredwindows, and is used by patients who have certain diseases of the eyes requiringthe exclusion of… … VVt^ltraB.NifngfsvingCo Ch THE LENS; WITH THE Transactions of the State Microscopical Society of Illinois, Vol. IL—CHICAGO, APRIL, 1873.—No. 2. CONSPECTUS OF THE DIATOMACEJE,~ANALYSISOF THE SPECIES OF THE GENUS AMPHORA. A STRANGE misconception has existed as to the position of thegenus Amphora ;…
Microscopy
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