Help with Questions to The Last Leaf : Whom do `such men’ refer to

If there are such men I want them to speak out. Not all at once: but in reasonable numbers, and as far as may be in alphabetical order, and I will immediately, write their names down on paper.

a] Whom do `such men’ refer to? Why and how has such a thought occurred to the author?

b] Which two types of men does he not count among them? Why?

c] Which movements does he want to start and why?

d] What does he have to in conclusion? How does that slightly differ with what he has already said in the beginning of the story?

e] Which particular description or incident do you find humorous ? Give reasons.