What were his reflections concerning the last member of this series and late occupant of the bed?
Reflections on his vigour (a bounder), corporal proportion (a billsticker), commercial ability (a bester), impressionability (a boaster).
Why for the observer impressionability in addition to vigour, corporal proportion and commercial ability?
Because he had observed with augmenting frequency in the preceding members of the same series the same concupiscence, inflammably transmitted first with alarm, then with understanding, then with desire, finally with fatigue, with alternating symptoms of epicene comprehension and apprehension.
With what antagonistic sentiments were his subsequent reflections affected?
Envy, jealousy, abnegation, equanimity.
Envy?
Of a bodily and mental male organism specially adapted for the superincumbent posture of energetic human copulation and energetic piston and cylinder movement necessary for the complete satisfaction of a constant but not acute concupiscence resident in a bodily and mental female organism, passive but not obtuse.
Jealousy?
Because a nature full and volatile in its free state, was alternately the agent and reagent of attraction. Because attraction between agents and reagents at all instants varied, with inverse proportion of increase and decrease, with incessant circular extension and radial reentrance. Because the controlled contemplation of the fluctuation of attraction produced, if desired, a fluctuation of pleasure.