11.   He mentions having sent home two moving picture projectors, camera lenses, other optical instruments and clothing.

12.   He decided that for such detailed work, they may have had optical instruments.

13.   Herzberg was known as the creator of modern molecular spectroscopy, which uses optical instruments to measure the characteristics of light emitted or absorbed by molecules and atoms.

14.   In it they gave no documentary evidence of optical instruments.

15.   In the laparoscopic surgery performed on Mrs. Whitman, her right ovary and Fallopian tube were removed through small abdominal incisions and the use of a small optical instrument.

16.   Ms. Saad-Cook uses optical instruments to reflect, refract, split, shape and throw light onto nearby surfaces in moving washes of color.

17.   Nikon also makes cameras, scanners, microscopes and other optical instruments.

18.   They plan to install a new flight computer and fine guidance sensor, a large optical instrument that is crucial to pointing accuracy.

19.   Visitors enter the exhibition through a large but dimly lighted hall with several display cases containing early optical instruments.

20.   He used a tiny doll-sized optical instrument to penetrate the amniotic sac of the plump twin.