 | Sarah Knowles Bolton - 1926 - 384 páginas
...district depends in a great measure upon the number of field-mice, which destroy their combs and nests ; the number of mice is largely dependent, as every one knows, on the number of cats." Hence, as Mr. Darwin shows, the frequency of certain flowers in a district may depend upon the number... | |
 | Winterton Conway Curtis, Mary Jane Guthrie - 1927 - 610 páginas
...field-mice, which destroy their combs and nests; and Col. Newman, who has long attended to the habits of humblebees, believes that " More than two-thirds of...dependent, as every one knows, on the number of cats; and Col. Newman says, " Near villages and small towns I have found nests of humble-bees more numerous than... | |
 | Walter Johnson - 1928 - 372 páginas
...district depends in a great degree on the number of field-mice, which destroy their combs and nests." " The number of mice is largely dependent, as every one knows, on the number of cats." 1 In these three statements a great truth is taught respecting natural checks. Mr. Edward Clodd and... | |
 | Kenneth Burke - 1968 - 248 páginas
...mice, which destroy their combs and nests; and Mr. H. Newman, who has long attended to the habits of humble-bees, believes that 'more than two-thirds of them are thus destroyed all over 160 England! Now the number of mice is largely dependent, as everyone knows, on the number of cats;... | |
 | Charles Birch, John B. Cobb - 1985 - 372 páginas
...field-mice, which destroy their combs and nests; and Mr H. Newman, who has long attended to the habits of humble-bees believes that 'more than two-thirds of...villages and small towns I have found the nests of humblebees more numerous than elsewhere, which I attribute to the number of cats that destroy the mice.'... | |
 | Charles Darwin - 1996 - 382 páginas
...field-mice, which destroy their combs and nests; and Mr. H. Newman, who has long attended to the habits of humble-bees, believes that "more than two-thirds of...villages and small towns I have found the nests of humble-bees more numerous than elsewhere, which I attribute to the number of cats that destroy the... | |
 | William H. Calvin - 1998 - 266 páginas
...field-mice, which destroy their combs and nests; and Col. Newman, who has long attended to the habits of humble-bees, believes that "more than two-thirds of...dependent, as every one knows, on the number of cats; and Col. Newman says, "Near villages and small towns I have found the nests of humble-bees more numerous... | |
 | Charles Darwin - 2003 - 676 páginas
...H. Newman, who has long attended to the habits of humble-bees, believes that "more than two thirds of them are thus destroyed all over England." Now...villages and small towns I have found the nests of humble-bees more numerous than elsewhere, which I attribute to the number of cats that destroy the... | |
 | Jan Lin, Christopher Mele - 2005 - 382 páginas
...in a great measure on the number of field mice, which destroy their combs and nests. It is estimated that more than two-thirds of them are thus destroyed all over England. Near villages and small towns the nests of bumblebees are more numerous than elsewhere and this is... | |
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Near villages and small towns I have found the nests of humble-bees more numerous than elsewhere, which I attribute to the number of cats that destroy the mice. 
