Word: lensed
(lookup in dictionary)
(lookup stats)
Dates: during 1920-1929
Sort By: most recent first
(reverse)
A "micro-vivisection" apparatus so delicate that it enables scientists to dissect living cells has been perfected by Professor C. E. Tharaldsen, of the Department of Zoology, Northwestern University. It consists of a brass lever moved by three finely adjusted screws, manipulating special glass needles which can be brought to...
Mr. Williams spent several months in the spring and summer of 1921 investigating conditions in the coal-mining districts around Lens and Douai in northern France, besides visiting the Saar Valley section. As a part of his investigation he spent ten days working in one of the mines near Lens...
The Biological Club will meet this afternoon at 4.45 o'clock in Room 46 of the Zoological Laboratory. Miss Mary Chambers will lecture on "The Lateral-line Sense Organs of Amiurus, Nebulosus", and Mr. A. J. Lanchner will, review the work of M. F. Guyer on the inheritance of lens...
It has long been known that light passing through the lens of the eye makes an image on the retina at the back of the eyeball, as on a photographic plate, and that the impulse which then carries the message from the retina along the optic nerves to the brain...
This apparatus, attached to the frog's eye, proved far more sensitive to light than any hitherto constructed, showing that the eye is a more sensitive instrument than any which it has been possible for man to construct. It measured the impulse from light a great deal too faint for...