 | Royal Agricultural Society of England - 1893 - 1182 páginas
...larvae like itself in successive broode, and each of these larvte repeats the process ; and it may he again repeated in the same geometrical ratio until...and language almost fails to express is the result.* If the aphides once get ahead, it is most difficult to clear them off, and at the same time the plants... | |
 | 1851 - 406 páginas
...spring procreates not one but eight larvae like itself in successive broods, and each of these larva repeats the process ; and it may be again repeated...almost fails to express, is the result. The Aphides produced by this internal gemmation, are as countless as the leaves of a tree, to which they are so... | |
 | 1851 - 438 páginas
...spring procreates not one but eight larvse like itself in successive broods, and each of these larva repeats the process ; and it may be again repeated...almost fails to express, is the result. The Aphides produced by this internal gemmation, are as countless as the leaves of a tree, to which they are so... | |
 | 1851 - 658 páginas
...itself, in successive broods, and each of those larvœ repeats the process ; and, as be truly said, it may be again repeated in the same geometrical ratio,...almost fails to express, is the result. The aphides, he added with bis usual felicity of illustration, produced by this internal gemmation, are as countless... | |
 | 1851 - 566 páginas
...larvae like itself in successive broods, and each of these larvae repeats the process ; and it mav be again repeated in the same geometrical ratio until...almost fails to express, is the result. The Aphides produced by this internal gemmation are as countless as the leaves of a tree, to which they are so... | |
 | Royal Institution of Great Britain - 1854 - 492 páginas
...spring procreates not one but eight larvae like itself in successive broods, and each of these larva? repeats the process ; and it may be again repeated...almost fails to express, is the result. The Aphides produced by this internal gemmation, are as countless as the leaves of a tree, to which they are so... | |
 | Richard Owen - 1855 - 1196 páginas
...Very good observations are, nevertheless, contained in CCLXVIII. N broods, and each of these larvae repeats the process ; and it may be again repeated...countless as the leaves of a tree, to which they are in some respects analogous. But why, it may be asked, should there be this strange combination of viviparous... | |
 | Thomas Rymer Jones - 1855 - 912 páginas
...spring procreates not one but eight larvae like itself in successive broods, and each of these larvae repeats the process, and it may be again repeated...until a number which figures only can indicate, and which language almost fails to express, is the result. The Aphides, generated from virgin parents by... | |
 | Thomas Rymer Jones - 1861 - 904 páginas
...spring procreates not one but eight larvae like itsclf in successive broods ; and each of these lame repeats the process ; and it may be again repeated...until a number which figures only can indicate, and which language almost fails to express, is the result. The Aphides, generated from virgin parents by... | |
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... repeats the process ; and it may be again repeated in the same geometrical ratio until a number which figures only can indicate and language almost fails to express, is the result. The Aphides... 