The principles of biology . Sphcerozoum punctatum, one of this group, illustrates the diffi-culty. Only by some license of iaterpretation, can we regardthe ceUseform bodies contaiaed iu it, as the morphologicalimits of the animal. The jelly-like mass in which they areimbedded; shows no signs of being divisible into portionshaving each a ceU or nucleus for its centre.* Comparison ofthe various forms assumed by creatures of this type, suggests,contrariwise, that the homogeneous sarcode is primary, andits iucluded structures secondary. Among the Foraminifera, we find evidence of the coalescence o
The principles of biology . Sphcerozoum punctatum, one of this group, illustrates the diffi-culty. Only by some license of iaterpretation, can we regardthe ceUseform bodies contaiaed iu it, as the morphologicalimits of the animal. The jelly-like mass in which they areimbedded; shows no signs of being divisible into portionshaving each a ceU or nucleus for its centre.* Comparison ofthe various forms assumed by creatures of this type, suggests,contrariwise, that the homogeneous sarcode is primary, andits iucluded structures secondary. Among the Foraminifera, we find evidence of the coalescence of aggre-gates of the first order, into aggregates of the second are solitary Foraminifers, allied to the creature repre-sented iu Fig. 134. Certain ideal types of combiuation * This statement seems at variance with the figure; but the figure is very in-accurate. Its inaccuracy curiously illustrates the vitiation of evidence. When Isaw the drawing on the block, I pointed out to the draughtsman, that he hadmade th
Size: 2363px × 1058px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectbiology, bookyear1864
