Possible Clues:

• Like some fertility lab techniques
• German bomb, in the beginning, as such a rare conception?
• -- -- fertilisation (IVF)
• How 'test-tube babies' are fertilized
• Happening outside the living organism
• Experimentally, in a way
• Outside body very involved in rioting — bad, not good
• Like some fertilizations
• Outside the living organism
• Victor breaks up riot after batting in test tube