\begin{tikzpicture}[scale = .35]
		\tikzstyle{every node} = [font = \small]
		\foreach \x in {6}
		{
			\foreach \y in {-8}
			{
				\draw[<-] (\x-7,\y+4) -- (\x+7,\y+4);
				\fill (\x-8,\y+4) node {\small{$\partial'$}};
				\draw[->] (\x-7,\y-0) -- (\x+7,\y-0);
				\fill (\x-8,\y-0) node {\small{$\partial$}};

				%bridging arcs in bold
				\draw[] (\x-0,\y+4) -- (\x-4,\y-0);
				\draw[] (\x+6,\y+4) -- (\x+2,\y-0);
				\draw[] (\x-4,\y+0) -- (\x+4,\y-0);
				
				\draw[] (\x-6,\y+0) -- (\x-6,\y+4);
				\draw[] (\x-6,\y+0) -- (\x-4,\y+4);
				\draw[] (\x+4,\y+0) -- (\x+6,\y+4);
				\draw[] (\x+6,\y+0) -- (\x+6,\y+4);
				
				\draw[] (\x-4,\y+4) -- (\x-4,\y-0);
				%\draw[](\x+4,\y+4) -- (\x+4,\y-0);
				\draw[](\x-2,\y+4) -- (\x-4,\y-0);
				
				\draw[](\x+0,\y+4) -- (\x-2,\y-0);
				%\draw[](\x+0,\y+4) -- (\x+0,\y-0);
				\draw[](\x+0,\y+4) -- (\x+2,\y-0);
				
							
				\draw[] (\x-0,\y+4) .. controls (\x+1,\y+3.25) and (\x+3,\y+3.25) .. (\x+4,\y+4);
				\draw[] (\x-0,\y+4) .. controls (\x+2,\y+2.5) and (\x+4,\y+2.5) .. (\x+6,\y+4);
				\draw[] (\x-2,\y+0) .. controls (\x-1,\y+.75) and (\x+1,\y+.75) .. (\x+2,\y+0);
				\draw[thick,dashed,red] (\x-4,\y+0) .. controls (\x-2,\y+2) and (\x+2,\y+2) .. (\x+4,\y+0);
			
				\foreach \t in {-6,-4,-2,0,2,4,6}
				{
					\fill (\x+\t,\y-0) circle (.1);
					\fill (\x+\t,\y+4) circle (.1);
				}
					
				\fill (\x-4,\y-0) node [below] {$i$};
				\fill (\x+4,\y-0) node [below] {$j$};
				\fill (\x+0,\y+1.5) node [above,red] {$\gamma$};	
				\fill (\x-6,\y+2) node [left] {$\cdots$};	
				\fill (\x+6,\y+2) node [right] {$\cdots$};	
				
			}
			
		}
\end{tikzpicture}