ScienceJohn Michels (Journalist) 1939 |
From inside the book
Results 1-3 of 78
Page 224
... light minimum for 206 non - pathologic cases , ages 9 to 70 years , at the end of the period of light adaptation and after 1 , 2 , 5 , 10 , 15 and 20 minutes of dark adaptation for the highest , lowest and the 5- , 25- , 50- , 75- and ...
... light minimum for 206 non - pathologic cases , ages 9 to 70 years , at the end of the period of light adaptation and after 1 , 2 , 5 , 10 , 15 and 20 minutes of dark adaptation for the highest , lowest and the 5- , 25- , 50- , 75- and ...
Page 225
... light adaptation takes place with very much greater rapidity than dark adaptation . What problem there is comes from the fact that until sufficient light adap- tation has taken place a disturbing dazzle may be present . In most cases at ...
... light adaptation takes place with very much greater rapidity than dark adaptation . What problem there is comes from the fact that until sufficient light adap- tation has taken place a disturbing dazzle may be present . In most cases at ...
Page 467
... light was directed through a certain area of a roent- genogram onto a photronic cell in circuit with a volt- meter ; the deflection of the voltmeter was compared with that obtained when the light was passed through each of a series of ...
... light was directed through a certain area of a roent- genogram onto a photronic cell in circuit with a volt- meter ; the deflection of the voltmeter was compared with that obtained when the light was passed through each of a series of ...
Contents
Sci 105 | 1 |
Philosophical Society American 382 E G CONKLIN 436 | 9 |
ALEXANDER J Science in the Old South | 12 |
58 other sections not shown
Other editions - View all
Common terms and phrases
acid Advancement of Science Agriculture American Association American Society animals asso awarded biological Botanical California cell cent chairman Chem chemical chemistry Chicago College Columbia University committee Company Council culture December 28 director discussion disease Division earth effect elected engineering entomologists experimental experiments fessor field genetic geology Grand Central Terminal Harvard Harvard University held hormone human ical industrial insects Institute interest investigation Jour laboratory lecture material mathematical Medal Medical Medicine ment method Museum National nature Observatory observed obtained organization physical physiology planetesimal plants president problems professor protein rats recent RECENT DEATHS relation Richard Gregory School SCIENCE FRIDAY scientific scientists secretary Section seismology session Smithsonian Institution Building social Society of America solution species structure sulfanilamide symposium temperature theory thiamin tion University versity vice-president virus vitamin Washington William workers York City