806 SEC. 18.- BIOLOGY. 



loads, the beam of the balance was lowered by means of a screw until the 

 muscle could scarcely bear the load. " It was the first time," says M. Du 

 Bois Reymond (Mem. de 1'Acad. de Berlin, 1859, p. 79), "that an evidently 

 " vital force was investigated in a similar manner to a physical force, and 

 " that the laws of this force were mathematically expressed in figures." The 

 description of the apparatus is also to be found in J. Miiller's Physiology, 

 edition of 1840, Vol. II., p. 59. 



IX. ANTHROPOLOGICAL APPARATUS. 



3999. Anthropological Instruments. 



Messrs. L. Mathieu and Son, Paris. 



1. Anthropological truss. 



2. Metrical measure, leather, divided into inches and centimetres. 



3. Metrical measures, steel, divided into inches and centimetres (2). 



4. Double metre, with articulated springs. 



5. Two large squares, graduated, by M. Broca. 



6. Facial goniometer 



7. Median 



8. Maxima frame. 



9. Flexible auricular square, by M. Broca. 



10. Plumb line. 



11. Dermographic pencils, by Piorry. 



12. Pocket dynamometers, by Mathieu. 



13. Pneumometer, and pneumodynamometer. 



14. Sphygmograph, by M. Marey. 



15. by Meurisse and Hy. Mathieu. 



16. Anthropometer. 



17. Graduated plane, by M. Broca. 



18. Profilometer, by Sauvage. 



19. Directing and exploring square, by M. Broca. 



20. Meter, brass. 



21. Caliper compasses, by M. Broca. 



22. Micrometric caliper compasses, by M. Broca. 



23. Cylometer 



24. Compasses, with slides, of various shapes. 



25. Endometer, by M. Mathieu. 



26. Pachymeter, by M. Broca. 



27. Crauiostator, of the human cranium. 



28. for comparative anatomy. 



29. Orbitostators, with orbital hands. 



30. Bi-millimetrical rule. 



31. label, by M. Broca. 



32. Craniophore, by M. Taupinard. 



33. by M. Broca. 



34. Plane, for projections. 



35. Craniograph, by M. Broca. 



36. Stereograph 



37. Suspensor, wood, with condylus plumb-line, by M. Broca, 



38. Do. steel, do. do. do. 



39. Cephalometer, by " Antelme," modified by " Bertillon." 



40. Millimetric ruler. 



41. Tracing glass. 



