*Note- Lancaster Collection Sections A-BV are located on the 1st level*
- BF38-940: Psychology
- BF173-175.5: Psychoanalysis
- BF176-176.5: Psychological tests and testing
- BF180-198.7: Experimental psychology
- BF203: Gestalt psychology
- BF207-209: Psychotropic drugs and other substances
- BF231-299: Sensation, Anesthesiology
- BF309-499: Consciousness, Cognition (Including learning, attention, comprehension, memory, imagination, genius, intelligence, psycholinguistics, mental fatigue)
- BF501-505: Motivation
- BF511-593: Affection, Feeling, Emotion
- BF608-635: Will. Volition. Choice. Control
- BF636-637: Applied psychology
- BF638-648: New Thought. Menticulture, etc.
- BF660-685: Comparative psychology, Animal and human psychology
- BF692-692.5: Psychology of sex, Sexual behavior
- BF697-697.5: Differential psychology, Individuality. Self
- BF698-698.9: Personality
- BF699-711: Genetic psychology
- BF712-724.85: Developmental psychology (Including infant psychology, child psychology, adolescence,
- adulthood)
- BF725-727: Class psychology
- BF795-839: Temperament, Character
- BF889-905: Graphology. Study of handwriting
*Note- Lancaster Collection Sections BX-Z are located on the 2nd level*
- RC321-571: Neurosciences, Biological Psychiatry & Neuropsychiatry
- RC346-429: Neurology; Diseases of the nervous system (Including speech disorders)
- RC435-571: Psychiatry
- RC475-489: Therapeutics, Psychotherapy
- RC490-499: Hypnotism and hypnosis, Suggestion therapy
- RC500-510: Psychoanalysis
- RC512-569.5: Psychopathology
- RC512-528: Psychoses
- RC530-552: Neuroses
- RC554-569.5: Personality disorders, Behavior problems (Including sexual problems, drug abuse, suicide, child abuse)
- RC569.7-571: Mental retardation, Developmental disabilities