I tried to figure writing it simply, but I thought you would have a better chance of understanding the theory at least.

[So Ed figured the other would like something like this. It's nice that Newt is so enthusiastic. It isn't often Ed comes across others so curious and keen to learn about alchemy. Newt is someone that would understand. Would be able to get it. Even if he might not be able to figure performing alchemy, doing transmutations, knowing and understanding the theory of it might help him figure what Ed can and can't do.]

Corrosive blood? Ew. But yeah, having a spare is great. Looks like it fits too!