 | David Starr Jordan, Vernon Lyman Kellogg - Evolution - 1907 - 526 pages
...that, if the whole genus of humble-bees became extinct or very rare in England, the heartsease and red clover would become very rare or wholly disappear....district depends in a great measure on the number of field mice, which destroy their combs and nests; and Colonel Newman, who has long attended to the habits... | |
 | David Starr Jordan, Vernon Lyman Kellogg - Evolution - 1907 - 530 pages
...that, if the whole genus of humble-bees became extinct or very rare in England, the heartsease and red clover would become very rare or wholly disappear....in any district depends in a great measure on the numher of field mice, which destroy their combs and nests; and Colonel Newman, who has long attended... | |
 | Charles Darwin - Evolution - 1909 - 584 pages
...that, if the whole genus of humble-bees became extinct or very rare in England, the heartsease and red clover would become very rare, or wholly disappear....humble-bees in any district depends in a great measure upon the number of field-mice, which destroy their combs and nests; and Col. Newman, who has long attended... | |
 | John Arthur Thomson - Evolution - 1910 - 410 pages
...red clover imported to New Zealand did not bear fertile seeds until humblebees were also imported. " The number of humblebees in any district depends in...field-mice, which destroy their combs and nests ; and Colonel Newman, who has long attended to the habits of humble-bees, believes that more than two-thirds... | |
 | Robert William Hegner - Zoology - 1910 - 434 pages
...that, if the whole genus of humblebees became extinct or very rare in England, the heart'sease and red clover would become very rare, or wholly disappear....humblebees in any district depends in a great measure upon the number of field mice, which destroy their combs and nests. . . . Now the number of mice is... | |
 | Robert William Hegner - Zoology - 1910 - 496 pages
...that, if the whole genus of humblebees became extinct or very rare in England, the heart'sease and red clover would become very rare, or wholly disappear....number of humblebees in any district depends in a g1^at measure upon the number of field mice, which destroy their coi -bs and nests. . . . Now the number... | |
 | James Ward - Philosophy - 1911 - 516 pages
...bees. The humble-bees fertilise the clover but "the number of humble-bees in any district depends in great measure on the number of field-mice, which destroy their combs and nests," but again "the number of mice is largely dependent, as every one knows, on the number of cats": and... | |
 | James Ward - Philosophy - 1911 - 516 pages
...bees. The humble-bees fertilise the clover but "the number of humble-bees in any district depends in great measure on the number of field-mice, which destroy their combs and nests," but again "the number of mice is largely dependent, as every one knows, on the number of cats": and... | |
 | Solomon Herbert - Evolution - 1913 - 436 pages
...if the whole genus of humble-bees became extinct, or very rare, in England, the heartsease and red clover would become very rare, or wholly disappear....humble-bees in any district depends in a great measure upon the number of field-mice, which destroy their combs and nests ; and Colonel Newman, who has long... | |
 | Bath and West and Southern Counties Society - 1914 - 494 pages
...probable that, if the whole genus of humble-bees became extinct or very rare in England, the . . . red clover would become very rare or wholly disappear....field-mice, which destroy their combs and nests ; and Colonel Newman, who has long attended to the habits of humble-bees, believes that ' more than two-thirds... | |
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Now the number of. mice is largely dependent, as every one knows, on the number of cats; and Col. 
