Example sentences of "at about the time of " in BNC.

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1 The total amount of growth hormone that is secreted per day increases to a maximum at about the time of puberty and is partially responsible for the growth spurt that is seen at about this time .
2 Oligodendrocytes appear at about the time of birth and the astrocyte a week later .
3 At about the time of the exhibition , it emerged that the firm was infringing the Medlock patent .
4 This led him to investigate in more detail the effect of alcohol on chromosome segregation at about the time of conception , and its effects on early development of the mouse embryo in vivo .
5 Shortly after my fourth birthday we moved to a village in Somerset with my father 's employer , a retired lawyer , a bachelor , whose household was presided over by a sister-in-law whose husband had died at about the time of my birth .
6 Whatever the exact mechanism for U/Pb fractionation , it seems to occur at shallow depths in the mantle at about the time of formation of the local oceanic lithosphere .
7 Wilfrid 's dealings with Aethelwealh were at about the time of Aethelwealh 's involvement in Kent in support of Eadric when a new southern Saxon hegemony extending from Wight into Kent could conceivably have challenged the existing political map of south-east England .
8 The typical Marshall microscope had gold stamps to decorate the tube and a fine focus , but did not have a substage mirror , which was introduced by Edmund Culpeper [ q.v. ] at about the time of Marshall 's death .
9 The work on markets was very concentrated around the early 1970s , at about the time of appearance of Outline of a Theory of Practice .
10 Why would Sara say that she had seen Alfred leaving his brother 's yard at about the time of the crime if she had not ?
11 I could check that she had begun to get her divorce at about the time of Sir Charles ' death .
12 At about the time of the settlement of the Visigoths in Aquitaine there had been unrest north of the Loire , which had been suppressed .
13 Austria considered herself directly affected when , at about the time of the Anglo-French declarations of war , Russian operations got under the way on the south side of the Danube .
14 The effect of the new evidence from the two women was to suggest that the man who assaulted Miss Wilson was arrested an hour earlier , at 11:50pm , and that they were in the police station making their statements at about the time of the murder and the discovery of the body .
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