The Journal of Economic Biology, Volume 4Dulau & Company, 1909 |
Autres éditions - Tout afficher
Expressions et termes fréquents
abdominal segments acarids Achorutes Agric Amerus antennae appendix attack bacteria Bagnall bark beetle Berkhamsted BIOL body Boll Börner bristles British Bull chalcid Circ Collembola Collinge colour conidia conidiophores conidium cultures described Diptera disease dorsally Econ Economic Biology eggs Entom Entomologist entozoa Eriophyes Euthrips female figs flies fungi fungus genera genus germ tube grub hairs hyaline hyphae Ibid injurious inoculated insects interesting intestinal joint Journ juniperina large numbers larvae length life-history Linn M.Sc males Marcellia mesothorax mites mycelium n.sp Nematode palpalis paper parasites pest Pestalozzia plants PLATE plts Portici Proc Prof Professor prothorax pupae pupal pupate Redia Reuter Shipley short Silvestri Sminthurus soil species specimens spines spores Stat terminates text figs thorax Thrips Thysanoptera Thysanura tissues Tubeuf Tullb U.S. Dept U.S. Nat Uzel ventral vermiform appendix whilst winter wood worms xxxiv Zambezi Zool
Fréquemment cités
Page 78 - It is practically the same in all cases, and consists in scraping away the epidermis and then the softer tissue until a distinct hole or depression is formed. After this stage, decomposition of the plant tissues rapidly takes place, due to the inroads of fungi and the bulb is practically mined.
Page 76 - In Nova Scotia the crops of turnips and cabbages are principally destroyed, whilst in the seed-leaf, by some Smynthurus, the size of a pin's head, and nearly globular. It hops with great agility by means of its forked tail, and may be found on every square inch of all old cultivated ground, but it is not plentiful on new land.
Page 94 - The thorax of insects and the articulation of the wings. — Proc. US Nat. Mus., vol. 36, pp. 511-595, 6 text figs., pis.
Page 61 - Typhoid a national reproach," or perhaps even " Typhoid a national crime," since it is an absolutely preventable disease. And as for the typhoid fly, that a creature born in indescribable filth and absolutely swarming with disease germs should practically be invited to multiply unchecked, even in great centers of population, is surely nothing less than criminal.
Page 53 - THE author states in his preface that the object of his book is
Page 20 - ... in the ventricles of the brain, and the central canal of the spinal cord ; and in the convoluted tubules of the kidney.
Page 63 - Lymphoid tissue is the characteristic feature of the true caecal apex throughout the animal kingdom, including man. As the vertebrate scale is ascended, this tissue tends to be collected together into a specially differentiated portion of the intestinal canal - — the vermiform appendix.
Page 8 - Part of the expenses of this research were defrayed by a grant from the Government Grants Committee of the Royal Society.
Page 27 - A revision of some species of Noctuidae heretofore referred to the genus Homoptera Boisduval.
Page 118 - A handbook of the destructive insects of Victoria, with notes on the methods to be adopted to check and extirpate them.