Joel Shew,
Midwifery and the diseases of women
(1852)
“ Twins, Triplets, and Quadrigemini of comparatively rare Occurrence—Of the Signs of two or more Children in the Womb—Management of Twin and Triplet Cases—The Nursing of Twins. It sometimes happens that the woman gives birth to two or more children at the same time. When a mother has twins it is usually the case that both children are smaller than the natural size; they are not, however, both of the same weight ”
