TO THE STUDENT 5 



such a clear account of what you have seen and done 

 that anyone else who knew nothing of the subject 

 could profit by reading them. In other words, 

 aim to make your notes usable in the future. Your 

 text-book may be regarded in one sense, as the 

 author's laboratory note-book. Seek to make 

 your laboratory note-book an accurate and readable 

 illustrated text on the ground covered by your 

 course. 

 E. Laboratory Drawings: 



11. Drawing is one of the greatest aids to observation. 

 This is its main purpose in the laboratory. It 

 is often said that "persons who cannot draw cannot 

 see." This is probably an extreme statement, 

 but it is. undoubtedly true that one who can make 

 an accurate drawing of a thing has observed it 

 more accurately than one who cannot. 



12. Laboratory drawings should aim to represent the 

 thing only as it is, not as it may impress one at 

 first sight. They differ in this respect from the 

 work of the artist. For example, to show the 

 exact number and location of the veins of a leaf 

 would ruin the artist's picture; but without those 

 details the laboratory drawing would.be of little 

 value. 



13. As directed in the GUIDE, make as thorough an 

 observation of the object as possible before you 

 begin to draw; then make the drawing. 



14. Unless otherwise directed, make outline drawings, 

 shading only where absolutely necessary. In 

 general, every line in your drawing should represent 

 some fact of structure in the specimen. 



15. Be sure to make the drawing large enough so that 



