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CADASTRE (a French word from the Late...

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Originally appearing in Volume V04, Page 927 of the 1911 Encyclopedia Britannica.
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CADASTRE (a See also:French word from the See also:Late See also:Lat. capitastrum, a See also:register of the See also:poll-tax)  , a See also:register of the real See also:property of a See also:country, with details of the See also:area, the owners and the value . A " cadastral survey " is properly, therefore, one which gives such See also:information as the Domesday See also:Book, but the See also:term is sometimes used loosely of the See also:Ordnance Survey of the See also:United See also:Kingdom (1= 2500), which is on sufficiently large a See also:scale to give the area of every See also:field or piece of ground . CADDIS-See also:FLY and CADDIS-See also:WORM, the name given to See also:insects with a superficial resemblance to moths, sometimes referred to the See also:Neuroptera, sometimes to a See also:special See also:order, the Trichoptera, in allusion to the hairy clothing of the See also:body and wings . Apart from this feature the Trichoptera also differ from the typical Neuroptera in the relatively See also:simple, mostly See also:longitudinal neuration of the wings, the See also:absence or obsolescence of the mandibles and the semi-haustellate nature of the See also:rest of the mouth-parts . Although caddis-flies are sometimes referred to several families, the See also:differences between the See also:groups are of no See also:great importance . Hence the insects may more conveniently be regarded as constituting the single See also:family Phryganeidae . The larvae known as caddis-See also:worms are aquatic . The mature See also:females See also:lay their eggs in the See also:water, and the newly-hatched larvae provide them-selves with cases made of various particles such as grains of See also:sand, pieces of See also:wood or leaves See also:stuck together with See also:silk secreted from the salivary glands of the See also:insect . These cases differ greatly927 in structure and shape . Those of Phyrganea consist of bits of twigs or leaves cut to a suitable length and laid See also:side by side in a See also:long spirally-coiled See also:band, forming the See also:wall of a subcylindrical cavity . The cavity of the See also:tube of Helicopsyche, composed of grains of sand, is itself spirally coiled, so that the See also:case exactly resembles a small See also:snail-See also:shell in shape . One See also:species of Limnophilus uses small but entire leaves; another, the shells of the See also:pond-snail Planorbis; another, pieces of stick arranged transversely with reference to the long See also:axis of the tube .

To admit of the See also:

free inflow and outflow of currents of water necessary for respiration, which is effected by means of filamentous abdominal tracheal gills, the two ends of the tube are open . Sometimes the cases are fixed, but more often portable . In the latter case the larva crawls about the bottom of the water or up the stems of See also:plants, with its thickly-chitinized See also:head and legs protruding from the larger orifice, while it maintains a secure hold of the silk lining of the tube by means of a pair of strong hooks at the posterior end of its soft defenceless See also:abdomen . Their See also:food appears for the most See also:part to be of a See also:vegetable nature . Some species, however, are alleged to be carnivorous, and a See also:North See also:American See also:form of the genus Hydropsyche is said to spin around the mouth of its burrow a silken See also:net for the See also:capture of small See also:animal organisms living in the water . Before passing into the pupal See also:stage, the larva partially closes the orifice of the tube with silk or pieces of See also:stone loosely spun together and pervious to water . Through this temporary See also:protection the active pupa, which closely resembles the mature insect, subsequently bites a way by means of its strong mandibles, and rising to the See also:surface of the water casts the pupal integument and becomes sexually adult . The above See also:sketch may be regarded as descriptive of the See also:life-See also:history of a great See also:majority of species of caddis-flies . It is only necessary here to mention one anomalous form, Enoicyla pusilla, in which the mature See also:female is wingless and the larva is terrestrial, living in See also:moss or decayed leaves . Caddis-flies are universally distributed . Geologically they are known to date back to the Oligocene See also:period, and wings believed to be referable to them have been found in Liassic and See also:Jurassic beds . (R .

I .

End of Article: CADASTRE (a French word from the Late Lat. capitastrum, a register of the poll-tax)
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