Shiitake that literature was later crossed-referenced many times and eventually adapted in a book by a Japanese horticulturist in 1796, the first book on shiitake cultivation in Japan. The Japanese cultivated the mushroom by cutting shii trees with axes and placing the logs by trees that were already growing shiitake or contained shiitake spores. Before 1982, the Japan Islands' variety of these mushrooms could only be grown in traditional locations using ancient methods. A 1982 report on the budding and growth of the Japanese variety revealed opportunities for commercial cultivation in the United States. Shiitake are now widely cultivated all over
What Is Life a combination that became the top-selling single of 1971 in that country. "What Is Life" is one of Harrison's most commercial and popular songs – a "spiritual guitar quest" that "became [a] classic", according to "Rolling Stone" magazine. On release, "Billboard" magazine's reviewer wrote of "What Is Life" and "Apple Scruffs" as "intriguing rhythm follows-ups" to Harrison's previous single, which were "sure to repeat that success" and "should prove big juke box items". In their "Solo Beatles Compendium", authors Chip Madinger and Mark Easter refer to it as an "intensely catchy track" and view its pairing with "My Sweet Lord"