68 ANATOMICAL TECHNOLOGY. 



B. The German instrnmenta answer very well for most purposes, and are much less 

 expensive than the others; They are imported by Messrs. H. Bolter & Co., of New York, 

 and may be had of A. J. Wilkinson in Boston, and of Messrs. Treman, King & Co. in 

 Ithaca, and of larger dealers generally. The " Stubs's " nippers are mere finely tempered, 

 and better finished. The smallest size (Fig. 10) are sold by Messrs. Codman & Shurtleff 

 for $1. The "bone forceps" of the surgical price lists are still more expensive. 



C. The "cross cutting" nippers are employed chiefly for cutting wire and for other 

 mechanical purposes. 



§ 147. Oiler. — A neat substitute for the ordinary metal oiler 

 may be made by suspending a dropping-tube in the mouth of 

 a vial of oil. One may then graduate the amount more exactly, 

 and apply it more accurately ; see Appendix. 



§ 148. Parchment Numbers.^Sheets of numbers of any size 

 may be had at a reasonable rate from "Collins' Printing House," 

 Philadelphia. If they are to be used with alcoholic specimens, that 

 fact should be mentioned so that proper drying ink may be em- 

 ployed. The numbers may be pasted upon dry specimens, or 

 placed in the alcohol with wet ones, or attached to muscles during 

 dissection by means of the small "ribbon pins." 



§ 149. Parchment for Labels. — Numbers and memoranda to be 

 attached to alcoholic specimens should be written upon parchment 

 with a saturated solution of India ink in either glacial acetic acid, 

 or acetic acid No. 8. The writing should be allowed to dry before 

 exposure to the alcohol. Parchment is written upon more easily if 

 the surface is first rubbed with a rubber eraser. 



§ 150. Rubber Gloves. — These are an efficient protection against 

 contact witli poisonous or malodorous substances. Of course, fine 

 dissection cannot be done in gloves, but it is sometimes desirable 

 to protect the hands, especially in the manipulation of the intestines, 

 and while macerating bones. Like other rubber articles, the gloves 

 should be wiped dry after using, and laid in a cool, dark place. 



§ 151. Rubber Tubing.— For the blow pipe, and for canulse, 

 the lumen should be 3 mm. (l-8th inch) ; the size next most use- 

 ful in the laboratory is 6 mm. 



§ 152. Saw — Pig. 21. — This should have a thin blade, and the 

 teeth should be but slightly " set." ^..^P" 



It is used chiefly for bisecting the 

 head for the removal of the brain, 

 and should not be employed for 

 mechanical purposes. 



§ 153. Scales.-Very few cats ^^- ^i-^ack Saw ; x .14. 



weigh as much as 5 kilos., and heavier ones can be weighed entire 



