In 1873, August Weismann postulated the equivalence of the maternal and paternal germ cells for heredity.

The strict neo-Darwinism of August Weismann gained few supporters in the late 19th century.

The origins of the concept of eugenics began with certain interpretations of Mendelian inheritance, and the theories of August Weismann.

The inheritance of acquired traits was shown to have little basis in the 1880s when August Weismann cut the tails off many generations of mice and found that their offspring continued to develop tails.

* 1834 – August Weismann, German biologist ( d. 1914 )

The significance of meiosis for reproduction and inheritance, however, was described only in 1890 by German biologist August Weismann, who noted that two cell divisions were necessary to transform one diploid cell into four haploid cells if the number of chromosomes had to be maintained.

The distinction is similar to that proposed by August Weismann, who distinguished between germ plasm ( heredity ) and somatic cells ( the body ).

The minority view of August Weismann, that natural selection was the only mechanism, was called neo-Darwinism.

As part of the disagreement about whether natural selection alone was sufficient to explain speciation, George Romanes coined the term neo-Darwinism to refer to the version of evolution advocated by Alfred Russel Wallace and August Weismann with its heavy dependence on natural selection.

Friedrich Leopold August Weismann ( 17 January 1834 – 5 November 1914 ) was a German evolutionary biologist.

As part of the disagreement about whether natural selection alone was sufficient to explain speciation, George Romanes coined the term neo-Darwinism to refer to the version of evolution advocated by Alfred Russel Wallace and August Weismann with its heavy dependence on natural selection.

Huxley was the most important biologist after August Weismann to insist on natural selection as the primary agent in evolution.

Other important contributors include William Harvey, Kaspar Friedrich Wolff, Heinz Christian Pander, August Weismann, Gavin de Beer, Ernest Everett Just, and Edward B. Lewis.

August Weismann: sein Leben und sein Werk.

* August Weismann

* August Weismann

* An examination of Weismannism ( 1893 ) ( August Weismann was the leading evolutionary theoretician at the turn of the 19th century )

* January 17 – August Weismann ( died 1914 ), biologist.

The question of evolution of sex from asexual reproduction have engaged the attentions of biologists such as Charles Darwin, August Weismann, Ronald Fisher, George C. Williams, John Maynard Smith and W. D. Hamilton, with varied success.

The thread was later picked up by August Weismann in 1889, who argued that the purpose of sex was to generate genetic variation, as is detailed in the majority of the explanations below.

August Weismann proposed in 1889 an explanation for the evolution of sex, where the advantage of sex is the creation of variation among siblings.

He began to study medicine in 1886 under August Weismann at the University of Freiburg.

In 1876 he suggested a hypothesis in explanation of heredity, resembling the germplasm theory subsequently elaborated by August Weismann, to the effect that the germinal protoplasm retains its specific properties from generation to generation, dividing in each reproduction into an ontogenetic portion, out of which the individual is built up, and a phylogenetic portion, which is reserved to form the reproductive material of the mature offspring.

He reevaluates August Weismann's model of the cell compartmentalization of somatic and germline cell lineages ( see Weismann barrier ), and argues that the vision of the individual taken by the modern synthesis is insufficient to explain the early evolution of development or ontogeny.

After Huxley the most important influence on his thought was August Weismann, the German zoologist who rejected Lamarkism, and wholeheartedly advocated natural selection as the key force in evolution at a time when other biologists had doubts.

Considering the governor's act a personal rebuff, he aired his feelings in The Gazette on August 26, 1834::

Ernst Heinrich Philipp August Haeckel ( February 16, 1834 – August 9, 1919 ),

The results of these inquiries contributed greatly to the abolition of slavery as of August 1, 1834, throughout the British Empire.

" Another emphasis on the musicality of the poem came in August 1834, with Henry Nelson Coleridge analysis in the Quarterly Review: " In some of the smaller pieces, as the conclusion of the ' Kubla Khan ', for example, not only the lines by themselves are musical, but the whole passage sounds all at once as an outburst or crash of harps in the still air of autumn.

Much of Paganini's playing ( and his violin composition ) was influenced by two violinists, Pietro Locatelli ( 1693 – 1746 ) and August Duranowski ( 1770 – 1834 ).

In this book, the son claims that James Chalmers first produced an essay describing and advocating a stamp in August 1834.

Slavery was abolished by an Act of Parliament that became law on 1 August 1834.

On 1 August 1834, an unarmed group of mainly elderly blacks being addressed by the Governor at Government House about the new laws, began chanting: " Pas de six ans.

On 1 August 1838 emancipation which had theoretically been granted to the slaves in 1834 became a reality.

* August 22 – Charles W. Eliot, President of Harvard University ( b. 1834 )

* August 16 – James Hector, Scottish geologist ( b. 1834 )

* August 9 – Thomas Telford, British engineer & architect ( d. 1834 )

* August 2 – William Campbell, Chief Justice of the Supreme Court of Upper Canada and a resident of Toronto ( d. 1834 )

* Uggero il danese ( 11 August 1834, Teatro Riccardi, Bergamo )

The abolition of slavery occurred on 1 August 1834, and to this day it is celebrated by a three day public holiday on the first Monday, Tuesday and Wednesday in August in the British Virgin Islands.

Sir Robert Peel, 2nd Baronet ( 5 February 17882 July 1850 ) was a British Conservative statesman, who served as Prime Minister of the United Kingdom from 10 December 1834 to 8 April 1835, and again from 30 August 1841 to 29 June 1846.

* Kee-too-way-how (‘ Sounding With Flying Wings ’, better known as Alexander Cayen dit Boudreau, Chief of the Parklands or Willow Cree at Muskeg Lake, born 1834 St. Boniface, Manitoba, son of Pierre Narcisse Cayen dit Boudreau and Adelaide Catherine Arcand (‘ Kaseweetin ’), though he was of Métis descent he became chief of the Willow Cree and the Métis, who were living with the Cree, brother of Petequakey (‘ Isidore Cayen dit Boudreau ’), lived along Duck Lake, signed 1876 Treaty 6 and settled in a reserve at Muskeg Lake-that was later named after his brother Petequakey-but left the reserve in 1880 and lived again in the following years close to St. Laurent de Grandin mission, played a prominent role during the Northwest Rebellion of 1885 in which he participated in every battle, served also as an emissary of the Métis leader Gabriel Dumont to ask the Assiniboine for support, on 23 May 1885 he also submitted the declaration of surrender of Pitikwahanapiwiyin (' Poundmaker ') to General Middleton, was captured on the 1st June 1885, in the subsequent trial of Kee-too-way-how at Regina, Louis Cochin testified that he and the carters in the camp of Pitikwahanapiwiyin survived only thanks to the intercession by Kee-way-too-how and its people, despite the positive testimony, he was on 14 August 1885 sentenced to imprisonment for seven years for his involvement in the Métis rebellion, died 1886 ).

Karl Ewald Konstantin Hering ( August 5, 1834 – January 26, 1918 ) was a German physiologist who did much research into color vision and spatial perception.

Other important encyclicals were Mirari Vos, on liberalism and religious indifferentism ( issued on 15 August 1832 ), Quo Graviora, on the Pragmatic Constitution in the Rhineland ( issued on 4 October 1833 ), and Singulari Nos, on the errors of Hugues Felicité Robert de Lamennais ( issued on 25 June 1834 ).

Mission San Juan Capistrano was the very first to feel the effects of this legislation the following year when, on August 9, 1834 Governor Figueroa issued his " Decree of Confiscation.

Mission San Juan Capistrano was the very first to feel the effects of this legislation the following year when, on August 9, 1834, Governor Figueroa issued his " Decree of Confiscation.