compose that the tissue and system will be studied together. The 

 peripheral nervous system, likewise, may best be studied with the 

 nervous tissues. 



METHOD OF LABORATORY WORK. 



Laboratory work is arranged as weekly exercises, and each 

 week's work is to be completed before the next succeeding is under- 

 taken. Mounted preparations of the various tissues and organs 

 taken up will be studied. These preparations may be divided into 

 four groups: A, those owned by the department and assigned for 

 study; B, those prepared by the department and simply to be 

 mounted by the student; C, those in which the fixing, imbedding 

 and sectioning are done by the department and the staining and 

 mounting by the student; D, preparations made entirely by the 

 student, i. e., fixed, imbedded, sectioned and stained; and E, dem- 

 onstrations of preparations illustrating special features. With 

 all specimens prepared or partially prepared by the department 

 exact data will be posted on the bulletin board as to (a) the 

 mode of fixation, (b) imbedding method, (c) thickness of the 

 section, when known, (d) stains employed. 



In the case of preparations belonging to class D the student is 

 expected to keep a record of the different steps and times. Since 

 there will be slides owned by the student (B, C, D) and by the de- 

 partment (A), care must be exercised in keeping them separate ; 

 those owned by the student on one slide tray, those of the depart- 

 ment on the other. 



To gain a working knowledge of histological technic each stu- 

 dent will prepare from the beginning certain organs or tissues, i. e., 

 fix, imbed, section, stain and mount, imbedding them by the para- 

 fine and by the collodion methods. 



LABORATORY REPORTS. 



Reports upon each tissue or system are to be submitted when 

 the work on that tissue or system is finished, the reports and the 

 times they are due being posted on the bulletin board. These re- 

 ports are to consist in part of drawings of the preparations studied, 

 in part of descriptions and such discussions as may be specifically 

 called for. In the drawings, name all the parts presented or at least 

 recognized. Large figures are preferable to small ones. Colored 



