The views of Adler as to the alternation of generations of numerous gall-flies have been fully confirmed, it having been ascertained by direct observation that the galls and the insects produced from them in one generation are entirely different from the next generation; and it has also been rendere
So far as can be ascertained, the latest report of his appearance was in the neighbourhood of Salt Lake City in 1868, when he is said to have made himself known to a Mormon named O'Grady.
ascertained与发音含义,同义词,反义词,翻译,刑和更多的