[DOC] [TLE] Inception of Darwin's theory - Wikipedia [PAR] The inception of Darwin's theory occurred during an intensively busy period 
which began when Charles Darwin returned from the survey voyage of the 
Beagle, with his reputation as a fossil collector and geologist already established. 
He was given an allowance from his father to become a gentleman naturalist ... 
He began specific transmutation notebooks with speculations on variation in... [DOC] [TLE] Charles Darwin - Wikipedia [PAR] Charles Robert Darwin, FRS FRGS FLS FZS was an English naturalist and 
geologist, best known for his contributions to the science of evolution. He 
established that all species of life have descended over time from ... He was 
writing up his theory in 1858 when Alfred Russel Wallace sent him an essay that 
described the... [DOC] [TLE] On the Origin of Species - Wikipedia [PAR] On the Origin of Species published on 24 November 1859, is a work of scientific 
literature by .... Grant revealed his enthusiasm for the transmutation of species, 
but Darwin rejected it. ... In mid-July 1837 Darwin started his "B" notebook on 
Transmutation of Species, and on page 36 wrote "I think" above his first 
evolutionary... [DOC] [TLE] AboutDarwin.com - Darwin's Timeline [PAR] Darwin started to write a brief sketch of his ideas on species transmutation. ... 
Lyell helped Darwin in finding naturalists to take his specimens for examination, 
and Owen eagerly volunteered to .... In his "Red Notebook" which he started 
onboard the Beagle, he noted that the giant llamas of South America ... 1837 
around July [DOC] [TLE] de Beer, Gavin ed. 1960. Darwin's notebooks on transmutation of ... [PAR] Jul 2, 2012 ... The First Notebook, begun in July 1837, represents the state of Darwin's ... entry 
written at a later date, for if he only began his Notebook in July 1837 he could .... 
Erasmus Darwin believed in the transmutation of species and evolution ..... "The 
Grand question which every naturalist ought to have before him... [DOC] [TLE] Charles Darwin's "On the Origin of Species" - Legacy [PAR] The British naturalist Charles Darwin published his book On the Origin of Species 
... in July 1837, Darwin began a new notebook and began writing down his 
thoughts on transmutation, or the concept of one species transforming into 
another. [DOC] [TLE] Michael Shermer  Why Darwin Matters: Excerpt [PAR] In June of 2004, Frank Sulloway and I began a month-long expedition to retrace 
... after which we read from Darwin's diary, in which the naturalist described a 
similar ... That July, 1837, Darwin opened his first notebook on Transmutation of 
Species. By 1844 he was confident enough write in a letter to his botanist friend 
and... [DOC] [TLE] 16,000 Pages of Charles Darwin's Writing on Evolution Now ... [PAR] Nov 30, 2014 ... 16,000 Pages of Charles Darwin's Writing on Evolution Now Digitized and 
Available Online ... from a July 1837 notebook entry, and Transmutation 
Notebook D above, ... and creativity that began toward the end of his Beagle 
voyage and that ... theory presented 20 years later in On the Origin of Species. [DOC] [TLE] Theory of Evolution development history of evolutionary theory ... [PAR] When on board H.M.S. 'Beagle,' as naturalist, I was much struck with certain facts 
in the ... These facts seemed to me to throw some light on the origin of species - 
that ..... Again, writing to Bates some months later, in 1847: "I begin to feel rather 
.... As early as July 1837 Darwin opened a notebook to record his thoughts as this
... [DOC] [TLE] Mind the gap: did Darwin avoid publishing his theory for many years ... [PAR] May 22, 2007 ... Modern writers inherited Darwin's delay from earlier writers who did ... In fact, 
Darwin hardly veered from his original plans for working out and publishing his 
species theory in ... He told his readers that he began to work on the subject in 
1837, ... Darwin's early transmutation notebooks were first published in... [DOC] [TLE] Charles Robert Darwin facts, information, pictures | Encyclopedia ... [PAR] Second, in adjacent areas of South America, Darwin found

Question: In July 1837 this naturalist began writing his notebooks on the transmutation of species
Answer: Charles Darwin