The global carbon cycle is now usually divided into the following major reservoirs of carbon interconnected by pathways of exchange: 1  The atmosphere. 2  The terrestrial biosphere. 3  The oceans, including dissolved inorganic carbon and living and non-living marine biota.
Elizabeth Blackwell: First Woman M.D. (Barnard Biography Series, Vol. 2) Mar 1, 1997
Elizabethâs graduating thesis was on the topic of typhus and in its conclusion she linked physical health with socio-moral responsibility. On 23 January 1849, the 28-year-old Elizabeth Blackwell became the first woman to achieve a medical degree in the United States. As she was granted her degree, Charles Lee, the dean of the college, stood up from his chair and made a courtly bow in her direction.