抄録
For the study of a relation between the body weight and size of various cells in new born mice, many cases of various body weights were investigated. We measured the sizes of the sternohyoid muscle fibres, motor nerve cells of the anterior horn of the cervical spinal cord and liver cell nuclei, as a result of which it was recognized that individual differences are very marked in muscle fibres and nerve cells. Their sizes generally seem to be in proportion to the body weight and it was also assumed that the growth of the muscle fibres was correlated to the body-build index. On the other hand, in the liver cell nuclei, individual variability is small, and no definite relation to body weight was recognized.
