4 INTRODVCTtOtf. 



to a point, with a rubber bulb on the larger end. They 

 may be purchased in drug stores under the name of 

 " medicine droppers." 



Fine scissors may be either those made for anatom- 

 ical purposes or small embroidery scissors. The 

 latter answer most purposes well. 



A metric rule is highly desirable. The student 

 should have a pocket rule and should early familiarize 

 himself with the metric system. Metric measures of 

 various styles and prices may be obtained of the Amer- 

 ican Metric Bureau, Boston, Mass. 



The drawing materials required consist of slips or a 

 blank book 8 of unruled paper, hard and soft pencils, 

 pens and ink. For ink drawings the paper may be 

 either sized or unsized, rough or smooth, so long 

 as the ink does not spread, but for pencil drawings 

 the surface must be minutely roughened, and with- 

 out sizing, in order that the plumbago may adhere well 

 and give a soft effect. A quite hard pencil, No. 5, VH 

 or HHHH, of artists' grades, is needed for tracing 

 under the camera lucida, and one slightly softer than 

 used for ordinary writing, No. 2, SM, or B, for com- 

 pleting drawings, especially those in gross anatomy. 

 Ordinary steel pens, preferably those with slender 

 points, and common black ink will suffice, but finer 

 work may be done with lithographic pens and India 

 ink. 



II. REAGENTS. 



The following reagents are necessary for the study 

 of minute anatomy with this manual : 



2 If a book is used it must be so bound that it will lie flat on the table 

 when open. The slips are usually preferred. 



