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Displaying 176 - 200 of 693 items.

1894 Investigators and Faculty (Overlay 1)

Digitized by the MBL Digital Processing Center

Format: Photographs

Subject: People, Organizations

1894 Investigators

Digitized by the MBL Digital Processing Center

Format: Photographs

Subject: People, Organizations

1894 Investigators and Faculty

Digitized by the MBL Digital Processing Center

Format: Photographs

Subject: People, Organizations

1894 Investigators and Faculty (Overlay 2)

Digitized by the MBL Digital Processing Center

Format: Photographs

Subject: People, Organizations

1894 Ten Scientists (Overlay)

Digitized by the MBL Digital Processing Center

Format: Photographs

Subject: People, Organizations

1894 Ten Scientists

Digitized by the MBL Digital Processing Center

Format: Photographs

Subject: People, Organizations

Botany Course Photograph, 1895, on steps (Overlay)

Digitized by the MBL Digital Processing Center

Format: Photographs

Nobska Lighthouse

Mary Huettner sitting by side of road with Nobska Lighthouse in the background

Format: Photographs

Subject: Places, People

E. B. Wilson with Richard & Robert Huettner

Dr. E. B. Wilson - 1929 Richard (L) and Robert (R) Huettner. Photographed in rear of Crane Building. Wison was using crutches as he suffered from severe arthritis in his later life

Format: Photographs

Subject: People

Wilson with Huettner sons

E.B. Wilson with Richard (L) and Robert (R) Huettner

Format: Photographs

Subject: People

John Philip Trinkaus (1918-2003)

John Philip Trinkaus studied the processes of cell migration and gastrulation, especially in teleost fish, in the US during the twentieth century. Called Trink by his friends, his social confidence and work ethic combined to make him a prolific and decorated developmental biologist. His scientific contributions included investigations of several different aspects of embryology.

Format: Articles

Subject: People

Warren Harmon Lewis (1870-1964)

As one of the first to work at the Carnegie Institution of Washington Department of Embryology, Warren Harmon Lewis made a number of contributions to the field of embryology. In addition to his experimental discoveries on muscle development and the eye, Lewis also published and revised numerous works of scientific literature, including papers in the Carnegie Contributions to Embryology and five editions of Gray's Anatomy.

Format: Articles

Subject: People

Leo Loeb (1869-1959)

Leo Loeb developed an experimental approach to studying cancer and pioneered techniques for tissue culture and in vitro tissue transplantation which impacted early-to-mid twentieth century experimental embryology. Loeb received his medical degree from the University of Zurich in 1897. As part of his doctorate, he completed a thesis on the outcomes of tissue transplantation in guinea pigs. Loeb's thesis inspired a life-long interest in tissue transplantation.

Format: Articles

Subject: People

The French Flag Model

The French flag model represents how embryonic cells receive and respond to genetic information and subsequently differentiate into patterns. Created by Lewis Wolpert in the late 1960s, the model uses the French tricolor flag as visual representation to explain how embryonic cells can interpret genetic code to create the same pattern even when certain pieces of the embryo are removed. Wolpert's model has provided crucial theoretical framework for investigating universal mechanisms of pattern formation during development.

Format: Articles

Subject: Processes, Theories

"Further Experiments on Artificial Parthenogenesis and the Nature of the Process of Fertilization" (1900), by Jacques Loeb

Jacques Loeb broadened and corrected his earlier claims concerning artificial parthenogenesis in sea urchins in a series of experiments in 1900. He published these findings, "Further Experiments on Artificial Parthenogenesis and the Nature of The Process of Fertilization," in a 1900 issue of The American Journal of Physiology.

Format: Articles

Subject: Experiments

Amphioxus, and the Mosaic Theory of Development (1893), by Edmund Beecher Wilson

Edmund Beecher Wilson experimented with Amphioxus (Branchiostoma) embryos in 1892 to identify what caused their cells to differentiate into new types of cells during the process of development. Wilson shook apart the cells at early stages of embryonic development, and he observed the development of the isolated cells. He observed that in the normal development of Amphioxus, all three main types of symmetry, or cleavage patterns observed in embryos, could be found. Wilson proposed a hypothesis that reformed the Mosaic Theory associated with Wilhelm Roux in Germany.

Format: Articles

Subject: Experiments

Ross Granville Harrison (1870-1959)

A pioneer in experimental embryology, Ross Granville Harrison made numerous discoveries that advanced biology. One of the most significant was his adaptation of the hanging drop method from bacteriology to carry out the first tissue culture. This method allowed for further studies in embryology as well as experimental improvements in oncology, virology, genetics, and a number of other fields.

Format: Articles

Subject: People

Theophilus Shickel Painter (1889-1969)

Theophilus Shickel Painter studied the structure and
function of chromosomes in the US during in the early to mid-twentieth century. Painter worked at
the University of Texas at Austin in Austin, Texas. In the 1920s
and 1930s, Painter studied the chromosomes of the salivary gland
giant chromosomes of the fruit fly (Drosophila
melanogaster), with Hermann J. Muller. Muller and Painter
studied the ability of X-rays to cause changes in the chromosomes
of fruit flies. Painter also studied chromosomes in mammals.

Format: Articles

Subject: People

Elinor Catherine Hamlin (1924- )

Elinor Catherine Hamlin founded and helped fund centers in Ethiopia to treat women affected by fistulas from obstetric complications. Obstetric fistulas develop in women who experience prolonged labor, as the pressure placed on the pelvis by the fetus during labor causes a hole, or fistula, to form between the vagina and the bladder (vesicovaginal fistula) or between the vagina and the rectum (rectovaginal fistula). Both of those conditions result in urinary or fecal incontinence, which often impacts womenÍs social status within their communities.

Format: Articles

Subject: People, Reproduction

B. Unger

image/jpg black and white image reformatted digital

Format: Photographs

L. Sribyatta

image/jpg black and white image reformatted digital

Format: Photographs

Mohamed Hasson Radi

image/jpg black and white image reformatted digital

Format: Photographs

Ernst Fischer

image/jpg black and white image reformatted digital

Format: Photographs

Kathleen M. Robertson

image/jpg black and white image reformatted digital

Format: Photographs

Mary Gojdics

image/jpg black and white image reformatted digital

Format: Photographs