| Ecclesiology | Study of church affairs | 
        
      | Eccrinology | Study of excretion | 
        
      | Ecology | Study of environment | 
        
      | Economics | Study of material wealth | 
        
      | Edaphology | Study of soils | 
        
      | Egyptology | Study of ancient egypt | 
        
      | Ekistics | Study of human settlement | 
        
      | Electrochemistry | Study of relations between electricity and chemicals | 
        
      | Electrology | Study of electricity | 
        
      | Electrostatics | Study of static electricity | 
        
      | Embryology | Study of embryos | 
        
      | Emetology | Study of vomiting | 
        
      | Emmenology | The study of menstruation | 
        
      | Endemiology | Study of local diseases | 
        
      | Endocrinology | Study of glands | 
        
      | Enigmatology | Study of enigmas | 
        
      | Entomology | Study of insects | 
        
      | Entozoology | Study of parasites that live inside larger organisms | 
        
      | Enzymology | Study of enzymes | 
        
      | Ephebiatrics | Branch of medicine dealing with adolescence | 
        
      | Epidemiology | Study of diseases; epidemics | 
        
      | Epileptology | Study of epilepsy | 
        
      | Epistemology | Study of grounds of knowledge | 
        
      | Eremology | Study of deserts | 
        
      | Ergology | Study of effects of work on humans | 
        
      | Ergonomics | Study of people at work | 
        
      | Escapology | Study of freeing oneself from constraints | 
        
      | Eschatology | Study of death; final matters | 
        
      | Ethnogeny | Study of origins of races or ethnic groups | 
        
      | Ethnology | Study of cultures | 
        
      | Ethnomethodology | Study of everyday communication | 
        
      | Ethnomusicology | Study of comparative musical systems | 
        
      | Ethology | Study of natural or biological character | 
        
      | Ethonomics | Study of economic and ethical principles of a society | 
        
      | Etiology | The science of causes; especially of disease | 
        
      | Etymology | Study of origins of words | 
        
      | Euthenics | Science concerned with improving living conditions | 
        
      | Exobiology | Study of extraterrestrial life |