As Osley observes, by age twenty-four Mercator had become "a superb engraver, an outstanding calligrapher, and one of the leading scientific instrument makers of his time". And as his later works attest, skill in engraving gradations and labels on brass and copper instruments proved useful in making printing plates for maps and globe gores.
Some supporters said the diversity of Mr. Connell's work attested to his skill.
But as the choice of music (Beethoven, Schubert, Mahler) reflected, and as his superb administrative skill attested, he was a cultured, disciplined German.
The former patients of Dr. Murray, all senior citizens, whom he had not cared for in over a decade, attested to his skill as a doctor and his willingness to care for patients who were elderly and/or indigent.
As our featured professionals can attest, other skills such as writing and communication are also important.
The latter show, along with a monthly interview column for the British version of GQ magazine, attested to Morgan's skill at drawing out celebrities' personal lives.
Norman Jewison, the movie's director, attested to Giardello's skills in a comment on the DVD version.
The book has the feel of a film, attesting to the skill of Guibert and Frédéric Lemercier, the graphic designer.
The two played another husband and wife in Los Angeles in a 2005 production of Joanna Murray-Smith's play "Honour," and he attests to her skill on the stage.
The business secretary has long boasted of his prowess on the dance floor and is the proud holder of several certificates attesting to his skill.
Lyrical, elegiac and ruminative, that novel not only attested to the author's skill at conjuring up a specific time and place, but also showed her ambition (and ability) to turn what might have been an ordinary family saga into a narrative that glittered with larger ideas about identity and history and the art of storytelling.
