Now divide D into subcolumns and assume that radiation flows through each subcolumn independently of all other subcolumns […]

We can find it nowhere so clearly as in these old journals, this collection of local historical material that makes such drudgy work to collect and catalog.

Expand the series 1/(1-x)-x/((1-x)³)+(1·3)/(2!)(x²)/((1-x)³)-(1·3·5)/(3!)(x³)/((1-x)⁷)+⋯ powers of x, shewing that the coefficient of xⁿ is S_n=1+∑₁ⁿ(-1)ʳ((n+r)!)/((r!)²(n-r)!)1/(2ʳ).

Popcorn costs something like $10 dollars at the movies.