APHORISMS OF GENERAL APPLICATION. 53 



keep envelopes already addressed to those with whom one desires to communicate fre- 

 quently, to insert the slips when written, and to send the letters as occasions arise. 



From a note in " Science," v., p. 86, Jan. 30, 1885, by Mr. B. Pickman Mann, it appears 

 that he had used slips for many years, and that they had been employed for correspond- 

 ence between Dr. George Dimmock, himself and others. 



122. Rules and Aphorisms of General Application. 



"In the order of Nature, doing comes before thinking; Art before 

 Science." Joseph Henry (Mayer, 1 9 95). 



"Personal familiarity alone makes knowledge alive." Philip Gilbert 

 Hamerton. 



"Practice the utmost rigidity and thoroughness in research, without 

 regard to time consumed, or value of results." Henry James Clark (Pack- 

 ard, 1 ). 



"Lenteur dans la marche; aridite dans 1'etude ; solidite dans les prin- 

 cipes; surete dans les resultats; ce sont la les attributs des sciences d'ob- 

 eervation." Bichat, A, i, p. v. 



Correct methods are the keys of knowledge. 



Whoever has learned how to work has taken a long step toward indepen- 

 dence of teachers and books. 



"The method may determine the result." Louis Agassiz. 



"If researches take at the first step a wrong direction they diverge the 

 farther from the truth the farther they are followed." Gaboriau. 



"It is often as if the truth were rather whispered than spoken by 

 Nature." Owen. 



Accuracy is more to be desired than speed. 



Books may be consulted in haste, but Nature demands deliberation. 



Non-discrimination is no proof of identity. 



Ignorance of a specimen's locality may cause delay ; an error respecting 

 it may create confusion. 



As is the locality to an individual, so is the individual to any of its parts. 



"There is so close a solidarity between ourselves and the animal world 

 that our inaccessible inward parts may be supplemented by theirs. * * * A 

 sheep's heart or lungs or eye must not be confounded with those of man ; 

 but so far as the comprehension of the elementary facts of the physiology of 

 circulation and of respiration and of vision goes, the one furnishes the 

 needed anatomical data as well as the other." Huxley, 3. 



" Carpenters and tailors do not learn their trades upon rosewood and 

 cloth of gold." Wilder, 2, 8. 



"Felitomy should be the stepping-stone to anthropotomy." Idem, 2, 6. 



"No medical student should be allowed to dissect the human cadaver 

 until he has familiarized himself with the anatomy of the cat." Cleven- 

 aer, 1, 1. 



