A FOREWORD TO THE STUDENT xi 



The Science of Biology, by Paul B. Weisz, 

 McGraw-Hill Book Co., 1959 (referred to here- 

 after as "Weisz"). 



Bioliogy. by Claude A. Villee. W. B. Saunders 

 Co.. 1962 (referred to hereafter as "Villee"). 



Life, by G. G. Simpson, C. S. Pittendrigh, 

 and L. H. Tiffany, Harcourt, Brace and Co., 

 1957 (referred to hereafter as "S.P.T."). 



Numerous other books are referred to through- 

 out the manual, where they are fully identified, as 

 are others listed in the Bibliography at the back 

 of the manual. 



Scientific American articles are identified both 

 by date of issue, and for the benefit of those who 

 have access to the reprints issued by W. H. 

 Freeman and Company, by reprint number. 



Equipment. You will need dissecting tools: 

 1 scalpel, I pair of scissors, 1 pair of forceps, 

 I dissecting needle, represent a minimum set. 

 Students going on in biology may wish to pur- 

 chase high-quality instruments and more of 

 them; a large and a small pair of forceps, for 

 example, and a large and small pair of scissors. 

 You may also want a laboratory apron. 



Cleaning up. Leave the laboratory as you 

 find it, or better still, as you wish you had 

 found it. Wash any dirty glassware and other 

 equipment with detergent or other cleanser, 

 using brushes when needed. Then rinse each 

 article at least five times, so that no soap what- 

 ever is left. Carelessness in rinsing may spoil a 

 later experiment. 



