The British Ferns Or Coloured Figures And Descriptions With The Needful Analysis Of The Fructification And Venation Of The Ferns Of Great Britain And Ireland Systematically Arranged The Drawings By W Fitch
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The British Ferns Or Coloured Figures And Descriptions With The Needful Analysis Of The Fructification And Venation Of The Ferns Of Great Britain And Ireland Systematically Arranged The Drawings By W Fitch
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Author : Sir William Jackson Hooker
language : en
Publisher:
Release Date : 1861
The British Ferns Or Coloured Figures And Descriptions With The Needful Analysis Of The Fructification And Venation Of The Ferns Of Great Britain And Ireland Systematically Arranged The Drawings By W Fitch written by Sir William Jackson Hooker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1861 with categories.
Annals And Magazine Of Natural History
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Author :
language : en
Publisher:
Release Date : 1861
Annals And Magazine Of Natural History written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1861 with categories.
Handbook Of The New Zealand Flora A Systematic Description Of The Native Plants Of New Zealand And The Chatham Kermadec S Lord Auckland S Campbell S And Macquarrie S Islands
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Author : Joseph Dalton Hooker
language : en
Publisher:
Release Date : 1867
Handbook Of The New Zealand Flora A Systematic Description Of The Native Plants Of New Zealand And The Chatham Kermadec S Lord Auckland S Campbell S And Macquarrie S Islands written by Joseph Dalton Hooker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1867 with categories.
British Bees Illustrations
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Author : William Edward Shuckard
language : en
Publisher: LOVELL REEVE & CO
Release Date : 1866
British Bees Illustrations written by William Edward Shuckard and has been published by LOVELL REEVE & CO this book supported file pdf, txt, epub, kindle and other format this book has been release on 1866 with Bees categories.
GENERAL HISTORY OF BEES. The bees constitute a family of the order Hymenoptera, viz. insects ordinarily, but in the case of bees always, with four transparent wings, which are variously but partially traversed longitudinally and transversely with threads, called nervures, supposed to be tubular, the relative position of which, together with the areas they enclose, called cells, help to give characters to the genera. Most of the Hymenoptera further possess some kind of an ovipositor,—of course restricted to the females,—varying considerably in the different families. This is sometimes external, but is often seated within the apex of the abdomen, whence it can be protruded for the purpose of depositing the egg in its right nidus. In our insect this organ is converted into a weapon of defence 18and offence, and forms a sting, supplied by glands with a very virulent poison, which the bee can inject into the wound it inflicts. It is not certain that this organ is used by the bee as an ovipositor, although it is evident it is its analogue. This brief description of the essential peculiarities of the family will, for the present, suffice. In the notice of the imago, I shall enlarge upon the general structure, and then particularize those portions of it which may facilitate further progress. The Egg.—Although the egg of the parent is the source of the origin of the bee, we cannot abruptly commence from this point, for the preliminary labours of the mother are indispensable to the evolution of its offspring. This egg has to be placed in a suitable depository, together with the requisite food for the sustenance of the vermicule that will be disclosed from it. Instinct instructs the parent where and how to form the nidus for its egg. These depositories differ considerably in the several genera, but, as a general rule, they are tubes burrowed by the mother either in earth, sand, decaying or soft wood, branches of plants having a pith, the halm of grain, cavities already existing in many substances, and even within the shells of dead snails. These perforations are sometimes simple, and sometimes they have divergent and ramifying channels. Sometimes they are carefully lined with a silky membrane secreted by the insect, and sometimes they are hung with a tapestry of pieces of leaves, cut methodically from plants, but some leave their walls entirely bare. All these particulars I shall have ample opportunity to note in the special descriptions of the genera. I merely indicate them to show how various are the receptacles for the offspring of our bees. Before the egg is placed within its nidus, this is supplied with the requisite quantity of food needful for the support of the young to the full period of its maturity. The receptacle is then closed, and the same process is repeated again and again until the parent has laid her whole store of eggs. In other cases one tube, or its ramification, contains but one egg. These eggs are usually oblong, slightly curved, and tapering at one extremity; they vary in size according to the species, but are never, however, above a line in length, and sometimes they are very minute. When the stock of the mother bee is exhausted she leaves them to the careful nursing of nature, and the young is speedily evolved. She then wanders forth; time has brought senility; her occupation has gone; and she passes away; but her progeny survive to perpetuate the continual chain of existence. To be continue in this ebook...
The Edible Mollusks Of Great Britain And Ireland
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Author : M. S. Lovell
language : en
Publisher:
Release Date : 1867
The Edible Mollusks Of Great Britain And Ireland written by M. S. Lovell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1867 with Cookery (Shell-fish) categories.
British Ferns
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Author : Margaret Plues
language : en
Publisher:
Release Date : 1866
British Ferns written by Margaret Plues and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1866 with Ferns categories.
British Grasses
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Author : Margaret Plues
language : en
Publisher:
Release Date : 1867
British Grasses written by Margaret Plues and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1867 with Grasses categories.
British Sea Weeds An Introduction To The Study Of The Marine Algae Of Great Britain Ireland And The Channel Islands
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Author : Samuel Octavus Gray
language : en
Publisher:
Release Date : 1867
British Sea Weeds An Introduction To The Study Of The Marine Algae Of Great Britain Ireland And The Channel Islands written by Samuel Octavus Gray and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1867 with Algae categories.
A Manual Of Chemical Analysis Qualitative And Quantitative For The Use Of Students
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Author : Henry Minchin Noad
language : en
Publisher:
Release Date : 1864
A Manual Of Chemical Analysis Qualitative And Quantitative For The Use Of Students written by Henry Minchin Noad and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1864 with categories.
Sacred Arch Ology
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Author : Mackenzie Edward Charles Walcott
language : en
Publisher:
Release Date : 1868
Sacred Arch Ology written by Mackenzie Edward Charles Walcott and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1868 with Christian art and symbolism categories.