Source (sōrs). The place where anything begins.
Species (spē'-shez). A group of closely related animals or plants.
Spine (spīn). (L. spina = a thorn). Anything sharp and slender like a thorn.
Spiracle (spir'-or spīr-a-kl). (L. spiraculum = a breathing hole). An air-hole.
Survivals (ser-vī'-valz). (L. supervivo = to live over.) Those outliving the larger number.
Swammerdam, Johannes. A Dutch entomologist, born in Amsterdam in 1637. He published several books on the natural history of insects.
Syringe (sir'-inj). (Gr. = a pipe or reed.) A little instrument for drawing in water, and forcing it out again.
Tarsus (tar'-sus); pl. Tarsi. (Gr. = the sole of the foot.) The little segments that make up the insect's foot. Also the little bones of the instep.
Telescope (tel'-e-skōp). (Gr. = to view afar off.) An instrument by which distant objects are made to appear nearer and larger.
Thorax (thō'-rax). (Gr. = armor for the breast.) That part of the body of animals between the head and the abdomen.