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attempting since 1894. The purpose of this particular paper was to discuss the photomicrography techniques using a broad overview of their work with the eggs. Three plates at different stages labeled A, B, and C are discussed in detail with 6 accompanying photographs each to show different perspectives. All three were fixed using a different method but the photographic technique remained consistent, using daylight near noon with 15–30 seconds of exposure.
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mechanical influences and believe it to usually have a spherical shape like the nucleolus. In place of
Periplanata americana, Foot and Strobell studied the spermatogenesis of Anasa tristis. The original paper asserts that Anasa tristis has 22 chromosomes, but they confirmed Paulmier and Montgomery's assessment that Anasa tristis has 21 chromosomes after the paper was sent to press.
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Description: The methods described in this paper were opposite to and more complicated than other methods used by contemporary investigators. However, Foot and
Strobell found those methods to be insufficient for their studies, possibly because they imbedded only a single row of eggs in each block and
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Description: This study explores whether the spermatozoa of the cocoon of
Allolobophora are derived from the spermathecae. This previously popular interpretation was challenged because of the discovery that the cocoons are formed during copulation. However, Foot and Strobell found that cocoons can be
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Description: This paper is written in support of Moore and
Robinson's previous interpretation that, in regards to the spermatogenesis of Periplanata americana, the nucleolus of the first spermatocyte is the homologue of one or two spermatogonial chromosomes. They attribute the elongate form to
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Description: The goal of this study was to perform a comparative study of living and fixed cytoplasm using the eggs at different stages. Strobell and Foot were able to study live eggs of
Allolobophora foetida under high magniication using a Bausch and Lomb compressor, a feat that Foot had been
165:. Strobell and Foot strongly opposed Stevens and Wilson's theory that chromosomes exist as individual structures because they appeared too variable in shape and size. Although they were ultimately wrong, their
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use less fixing and hardening. The described technique was shown to be successful at securing sections of 3 microns or less, allowing better visualization of the centrosome than was previously available.
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150:, mainly due to the innovated research techniques they developed in the process. They invented a method to make very thin samples of material at low temperatures so that they could be viewed under a
141:. Their partnership began in 1896 and continued until their last publication in 1917. Historians theorize that the pair privately funded their research since they were never formally employed.
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Preliminary Note on the
Results of Crossing Two Hemipterous Species with Reference to the Inheritance of an Exclusively Male Character and Its Bearing on Modern Chromosome Theories
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125:. She is a descendant of Daniel Strobel Jr., Anna Church Strobel, and Elizabeth Maria Church, the sitters featured in the works of art. Strobell died in 1920.
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After her death, Ella Church
Strobell continued to support Katharine Foot's research through a legacy that funded 2 years of study on the life cycle of a
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137:. She worked in the United States with her lab partner Katharine Foot, of whom much more is known. The majority of their papers were published in
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154:. In addition, they were some of the first to photograph their samples rather than drawing them based on what they saw under the microscope.
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Results of
Crossing Euschistus Variolarius and Euschistus Ictericus with Reference to the Inheritance of Two Exclusively Male Characters
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Preliminary Report of
Crossing Two Hemipterous Species, with Reference to the Inheritance of a Second Exclusively Male Character
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in hereditary, sex-linked characteristics. This research was conducted in New York City using
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Ella Church
Strobell was born on June 26, 1862. She was educated privately by tutors.
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The Nucleoli in the Spermatocytes and Germinal Vesicles of Euschistus variolarius
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Portrait of Mrs. Daniel Strobel, Jr. (Anna Church Strobel) and Her Son, George
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Strobell and Foot conducted additional notable research on the role of
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American Drawings and Watercolors in the Metropolitan Museum of Art
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Strobell and Foot are best known for their studies of the egg of
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Portrait of Sarah Russell Church (daughter of Edward Church)
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In 1914, the pair travelled to England to collaborate with
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Ella Church Strobell was a cytologist and a member of the
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Sectioning Paraffine at a Temperature of 25 °Fahrenheit
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formed and deposited when the worms are not copulating.
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People associated with the Metropolitan Museum of Art
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Further Notes on the Cocoons of Allolobophora foetida
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495:Portrait of Mrs. Daniel Strobel Jr. (Anna Church)
109:In 1917, Strobell bequeathed several paintings by
213:Further Notes on the Egg of Allolobophora foetida
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227:A New Method Of Focusing In Photomicrography
169:of chromosomes helped to advance the field.
615:Biographical Dictionary of Women in Science
263:The "Accessory Chromosome" of Anasa Tristis
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628:Avery, Kevin (2002). "John Vanderlyn".
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742:20th-century American women scientists
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660:. Indiana University Press. pp.
656:Women of Science: Righting the Record
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679:. Infobase Publishing. p. 241.
375:Portrait of Elizabeth Maria Church
309:Metropolitan Museum of Art bequest
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94:who frequently collaborated with
747:20th-century American zoologists
737:19th-century American zoologists
677:Encyclopedia of World Scientists
525:Portrait of Daniel Strobel, Jr.
345:Portrait of Daniel Strobel, Jr.
699:. Scarecrow Press. p. 104.
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652:Kass-Simon, Gabriele (1993).
584:Timeline of women in science
559:Jean-Pierre-Frédéric Barrois
86:(1862–1920) was an American
695:Creese, Mary (1 Jan 2000).
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617:. Routledge. p. 1248.
675:Oakes, Elizabeth (2007).
139:Woods Hole, Massachusetts
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732:American cell biologists
697:Ladies in the Laboratory
266:Foot and Strobell, 1907
252:Foot and Strobell, 1905
238:Foot and Strobell, 1902
216:Foot and Strobell, 1898
304:Foot and Strobell, 1917
296:Foot and Strobell, 1914
288:Foot and Strobell, 1913
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159:chromosomes
49:Nationality
711:Categories
636:: 116–119.
590:References
163:earthworms
152:microscope
88:cytologist
32:1862-06-26
566:17.134.8
563:ca. 1790
536:17.134.7
533:ca. 1830
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503:ca. 1830
476:17.134.5
473:ca. 1830
446:17.134.4
416:17.134.3
386:17.134.2
356:17.134.1
353:ca. 1799
189:Hemiptera
102:Biography
92:zoologist
578:See also
322:painter
198:for the
72:cytology
52:American
121:to the
68:zoology
319:title
316:image
129:Career
64:Fields
443:1799
413:1799
383:1799
325:date
196:louse
113:and
90:and
44:1920
41:Died
26:Born
662:227
570:MET
540:MET
510:MET
480:MET
450:MET
420:MET
390:MET
360:MET
187:of
179:of
117:by
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