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| | Silk Circa 1840: Deegan Paper |
 | | A grouping of the three stages of Bombyx mori's life span begins with the larval state, where, the monograph states, there is the "[i]nheritance of what were originally acquired characters, the results of attacks of enemies. |
| | According to the monograph, the pupa state, when the cocoon is spun by Bombyx mori, is the result of the change of a larva's habits which were passed genetically to the next generation of Bombyx mori, and is, "with little doubt, an acquired habit, originally formed by a single individual.". |
| | By this Packard meant that Bombyx mori at one point in its evolution was only a larva in its adult form, during its next evolutionary stage it was larva and then pupa as an adult, and most recently is in its present evolutionary stage goes from the larva to the pupa to the imago form. |
| www.smith.edu /hsc/silk/papers/deegan.html (1598 words) |
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