In letter 89, Le Vayer, after mentioning Strabo's scornful opinion of Pytheas's account of a region in the far north where land, sea, and air seemed to mingle in a single gelatinous substance, adds: Le Vayer does not specify who this "anchorite" was, nor does he provide further details about the story or its sources. Le Vayer's comment was expanded upon by Pierre Estève in his Histoire generale et particuliere de l'astronomie ("General and Particular History of Astronomy," 1755), where he interprets Le Vayer's statement (without attribution) as a claim that Pytheas "had arrived at a corner of the sky, and was obliged to stoop down in order not to touch it." The combination of the story of St. Macarius with Le Vayer's remarks seems to be due to Flammarion himself. It also appears in his Les terres du ciel ("The Lands of the Sky"): Later uses and interpretations The Flammarion engraving appeared in C. G. Jung's Flying Saucers: A Modern Myth of Things Seen in the Skies (1959). The first color version to be published was made by Roberta Weir and distributed by Berkeley's Print Mint in 1970. That color image spawned most of the modern variations that have followed since. Donovan's 1973 LP, Cosmic Wheels, used an extended black and white version on its inner sleeve (an artist added elements extending the image to fit the proportions of the record jacket). The image also appeared in "The Compleat Astrologer" (pg. 25) by Derek and Julia Parker in 1971. In 1994, 'The Secret Language of Birthdays' by Gary Goldschneider and Joost Elffers was published featuring this image. The Flammarion engraving appeared on the cover of Daniel J. Boorstin's bestselling history of science The Discoverers, published in 1983. Other books devoted to science that used it as an illustration include The Mathematical Experience (1981) by Philip J. Davis and Reuben Hersh, Matter, Space, and Motion: Theories in Antiquity and Their Sequel (1988) by Richard Sorabji, Paradoxes of Free Will (2002) by Gunther Stent, and Uncentering the Earth: Copernicus and On the Revolutions of the Heavenly Spheres (2006) by William T. Vollmann. Some books devoted to mysticism which have also used the engraving include Love and Law (2001) by Ernest Holmes and Gnosticism: New Light on the Ancient Tradition of Inner Knowing (2002) by Stephan A. Hoeller. The image was reproduced on the title page of the score of Brian Ferneyhough's