A short note from Popular Science Monthly in which Prof. Riley of St. Louis corrects an earlier calculation about the mulberry silk-worm's cocoon. He states that the thread averages little more than half a mile and seldom exceeds 1,000 yards, rather than the 11 miles previously claimed. He also gives the weight of a mile of thread as about 15½ grains.

A short miscellany note from Popular Science Monthly, reporting via La Nature and Italian newspapers on efforts in Brazil to produce silk from a little-known moth, called Bombyx saturnia and known as the porta-espejos. It describes the caterpillar's food plants, the nest-like cocoon, the short six-to-seven-week harvest, the simple filature in warm water, and the thread's strength and coarseness. It notes hopes of producing a very cheap silk for weaving and sewing thread.

A 1905 survey by H. Taylor Edwards of the Bureau of Agriculture, Manila, of the vegetable fibers of the Philippines and their economic importance. It covers abacá (manila hemp), maguey, cotton, piña (pineapple fiber), kapok, nipa, burri palm and other local fiber plants, with notes on how each is grown and extracted. It includes an export table for 1903 and three photographs, including one of a Morro woman weaving a sarong.