PART I. 



LECTURE II. 



General division of the sciences -which relate to mind and matter 

 Different departments of Botanical Science Partsofajlower. 



THE Universe, as composed of mind and matter -, gives rise 

 to various sciences. The SUPREME BEING we believe to be 

 immaterial, or pure mind. 



The knowledge of mind may be considered under two gene- 

 ral heads. 



1. THEOLOGY,* or that science which comprehends our views 

 of the Deity, and our duties to Him. 



2, PHILOSOPHY OF THE HUMAN MIND, or, metaphysics, -\ 

 which is the science that investigates the mind of man, and ana- 

 lyzcs and arranges its faculties. 



The knowledge of matter, which is included under the gene- 

 ral term, Physics, may be considered under three general heads. 



1. NATURAL PHILOSOPHY, which considers the effects of bo- 

 dies acting upon each other by their mechanical powers ; as 

 their weight and motion. 



2. CHEMISTRY, in which the properties, and mutual action 

 of the elementary atoms of bodies are investigated.' 



3. NATURAL HISTORY, which considers the external forms 

 and characters of objects, and arranges them in classes. 



NATURAL HISTORY is divided into three branches. 



1. ZOOLOGY, J which treats of animals. 



2. BOTANY, which treats of plants. 



3. MINERALOGY, which treats of the inorganized masses of 

 the globe ; as stones, earths, &c. GEOLOGY, which treats of 

 minerals as they exist in masses, forming rocks, is a branch of 

 mineralogy. 



Having thus presented you with this general view of the 

 natural sciences, we will now proceed to that department which 

 is to be the object of your present study. 



Departments in Botany. 



BOTANY treats of the vegetable kingdom, including every 



* From the Greek Theos, God, and logos, a discourse. 



t From meta, beyond, and phusis, nature. This term originated with Aris- 

 totle, who, considering the study of the intellectual world as beyond that of the 

 material world, or physics, called it meta taphusis. 



\ From zoe, life, and logos, a discourse. 



From the Greek, botane, an herb. 



Divisions of the sciences which relate to mind Those which relate to mat- 

 ter Branches of Natural history. 



