Shigeru Shimizu

On the racial differences of the current silkworm races in movement of newly hatched larvae and in number of degenerative crochets of 3rd instar larvae

Comparison of heterosis between male and female progeny in the silhworm, Bombyx mori L.

On the yellow molting character of the wild silkworm larva, Bombyx mandarina

On the comparison of the quantity of mulberry leaves ingested and the digestibility between the fifth instar larvae of the silkworm reared at 17.5° and 25°

Sex ratio of the silkworms which hatched from eggs of a batch containing many white-rot eggs

On the feeding of the silkworm on the leaf of elm, Ulumus parvifolia JACQ

Racial difference and its change with age in taste of the silkworm larva for leaves of the elm, Ulmus pumila, LINN

The length of pupal stage in the silkworm, Bombyx mori L.

Racial differences of the number of degenerative crochets found on the abdominal legs of the silkworm larva.

Number of pieces of mulberry leaves contained in the alimentary canal of the silkworm in each moulting stage