[85] The prostomium was misshapen, so that its specific character could not be made out.
[86] It is known that the process of regeneration of the liver takes place especially from the gall ducts.
[87] In one case I observed rhythmic pulsations in a vessel on one side of the neck, in the region above the pharynx.
[88] The figure was drawn fifteen days after union.
[89] Metschnikoff (’86), Herbst (’92).
[90] Eggs without membranes were placed in sea water without calcium, to which a few drops of sodium hydroxide have been added.
[91] The usual interpretation at present is to regard the proctodæal ingrowth as ectodermal.
[92] In some species the two proliferating regions seem to be in contact above from the beginning (Hepke, in Nais).
[93] This seems to be true for urodeles, but whether it is true for the anurans is rather a question of definition, as I have pointed out in my book on The Development of the Frog’s Egg.
[94] The attachments of the muscles may be the cause of the break in the middle of the vertebræ, rather than between two vertebræ.