. Elementary text-book of zoology. Highly magnified. acid. They are found to be calcareous in nature. They sup- port the wall of the sponge and form its skeleton. The further structure of Sycandra must be followed by prepared microscopic sections or by teasing to pieces and examination with the micro- scope. A transverse section as seen with low powers is shown in Fig. 39. The wall here shows F'g- 39-—Transverse Section of a Sycandra [A Sycon). Inhalent Canal. The central cavity is the paragastric cavity. a number of radial canals, some of them with thick walls and others with thin
. Elementary text-book of zoology. Highly magnified. acid. They are found to be calcareous in nature. They sup- port the wall of the sponge and form its skeleton. The further structure of Sycandra must be followed by prepared microscopic sections or by teasing to pieces and examination with the micro- scope. A transverse section as seen with low powers is shown in Fig. 39. The wall here shows F'g- 39-—Transverse Section of a Sycandra [A Sycon). Inhalent Canal. The central cavity is the paragastric cavity. a number of radial canals, some of them with thick walls and others with thin. The former open into the paragastric cavity by sniall contracted apertures and are called exhalent canals, whilst the latter open by the pores to the exterior and are termed inhalent canals. would show that the two sets of canals. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Masterman, Arthur Thomas. Edinburgh, E. & S. Livingstone
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1900, bookyear1902
