One of my favorite times of year in Flickr Commons is March, when the Smithsonian rolls out more wonderful images from the collection of portraits of women scientists. This is their fifth year running, and there are still plenty of photos to share. Check their stream every Friday in March for more treasures, but these are from the first batch this year:
| Ethel Grace Stiffler (c.1900-1995) was an American trained botanist, taught biology at several universities, and was married to astronomer Edwin Carpenter. |  Smithsonian Institution |
| Biochemist Lina Solomonova Stern (1878-1968) was born in present-day Latvia, and studied the blood-brain barrier in the Soviet Union. |  Smithsonian Institution |
| Gertrude Van Wagenen (1893-1978) was an American research anatomist at Yale University. |  Smithsonian Institution |
