%0 Journal Article %T A note on the Gunningham's formula %A Junho Lee %J Mathematics %D 2014 %I arXiv %X Gunningham [G] constructed an extended topological quantum field theory (TQFT) to obtain a closed formula for all spin Hurwitz numbers. In this note, we use the gluing theorem in [LP2] to reprove the Gunningham's formula. We also describe a TQFT formalism naturally induced from the gluing theorem. %U http://arxiv.org/abs/1407.0055v1