The Life History of a Silk Worm

Aggiungi una trama nella tua linguaThe eggs of the silkworm, called graine, are hatched out by artificial heat at the period when the mulberry leaves are ready for the feeding of the larvae. The moth of the silkworm lays abou... Leggi tuttoThe eggs of the silkworm, called graine, are hatched out by artificial heat at the period when the mulberry leaves are ready for the feeding of the larvae. The moth of the silkworm lays about two hundred eggs. A view of the eggs hatching is especially interesting. Pieces of paper... Leggi tuttoThe eggs of the silkworm, called graine, are hatched out by artificial heat at the period when the mulberry leaves are ready for the feeding of the larvae. The moth of the silkworm lays about two hundred eggs. A view of the eggs hatching is especially interesting. Pieces of paper, punctured with small holes are placed over the trays where the eggs are hatching, so the... Leggi tutto