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Unlike some other reproductions of classic texts (1) We have not
used OCR(Optical Character Recognition), as this leads to bad
quality books with introduced typos. (2) In books where there are
images such as portraits, maps, sketches etc We have endeavoured to
keep the quality of these images, so they represent accurately the
original artefact. Although occasionally there may be certain
imperfections with these old texts, we feel they deserve to be made
available for future generations to enjoy.
Unlike some other reproductions of classic texts (1) We have not
used OCR(Optical Character Recognition), as this leads to bad
quality books with introduced typos. (2) In books where there are
images such as portraits, maps, sketches etc We have endeavoured to
keep the quality of these images, so they represent accurately the
original artefact. Although occasionally there may be certain
imperfections with these old texts, we feel they deserve to be made
available for future generations to enjoy.
Unlike some other reproductions of classic texts (1) We have not
used OCR(Optical Character Recognition), as this leads to bad
quality books with introduced typos. (2) In books where there are
images such as portraits, maps, sketches etc We have endeavoured to
keep the quality of these images, so they represent accurately the
original artefact. Although occasionally there may be certain
imperfections with these old texts, we feel they deserve to be made
available for future generations to enjoy.
This is an EXACT reproduction of a book published before 1923. This
IS NOT an OCR'd book with strange characters, introduced
typographical errors, and jumbled words. This book may have
occasional imperfections such as missing or blurred pages, poor
pictures, errant marks, etc. that were either part of the original
artifact, or were introduced by the scanning process. We believe
this work is culturally important, and despite the imperfections,
have elected to bring it back into print as part of our continuing
commitment to the preservation of printed works worldwide. We
appreciate your understanding of the imperfections in the
preservation process, and hope you enjoy this valuable book.
This scarce antiquarian book is a selection from Kessinger
Publishing's Legacy Reprint Series. Due to its age, it may contain
imperfections such as marks, notations, marginalia and flawed
pages. Because we believe this work is culturally important, we
have made it available as part of our commitment to protecting,
preserving, and promoting the world's literature. Kessinger
Publishing is the place to find hundreds of thousands of rare and
hard-to-find books with something of interest for everyone!
Purchase of this book includes free trial access to
www.million-books.com where you can read more than a million books
for free. This is an OCR edition with typos. Excerpt from book:
lacunse, to be less primitive than the canalicular type, in which
the chambers are provided with special canaliculi. There is not
sufficient evidence at present to show whether or not this is the
case, but I think it not impossible that it may be so. EXPLANATION
OF PLATE XLII. Illustrating Mr. A. Dendy's paper " Studies on the
Comparative Anatomy of Sponges. I. On the Genera Ridleia, n. gen.,
and Quasillina, Norman." Figs. 1?7.?Ridleia oviformis. Fig. 1.
Entire Sponge, X 2. o. Osculum. a a. Flattened surfaces, by which
the Sponge has probably been attached to pebbles. Fig. 2.
Longitudinal section, taken at right angles to the surface shown in
Fig. 1, X 5. o. Osculum, leading into oscular tube; the black line
indicates tbe distribution of the fibrous tissue. (The figure is
rather diagrammatic; the canals radiating towards the centre are
exaggerated.) Fig. -A. Portion of transverse section, X 44. ect.
Ectosome. ch. choano some. p. Fore, leading into slit-like
subdermal cavity. e. c. Exhalant canals converging towards the
centre of the Sponge. /./. Layer of longitudinal fibres cut across.
e.f. Layer of circular fibres. sp. ti. Bundles of small spicules
projecting at surface. /. sp. Longitudinal bundles of spicules cut
across. i. sp. Oblique fibres of spicules within the choanosome cut
across. (A little diagrammatic.) Figs. 4 and 5. Two of the larger
tylostyli X 190. Fig. 6. One of the small tylostyli X 500. Fig. 7.
Diagram of diplodal canalicular canal system, as it occurs in
Ridleia oviformis, X 190. i.e. Inhalant canal, giving off narrow
caualiculi to/, c., the flagellated chambers, which communicate
again by narrow canaliculi with e. e., an exhalaut canal. Figs.
8?12.?Quasillina brevis. Fig. 8. Entire Sponge attached to a
pebble, nat. size. (After Ri...
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