Materia Medica by Nash
- CACTUS GRANDIFLORUS
- CALCAREA FLUOR
- CALCAREA HYPOPHOSPHORICA
- CALCAREA OSTREARUM
- CALCAREA PHOSPHORICA
- CALCAREA SULPHURICA
- CAMPHOR
- CANNABIS INDICA
- CANNABIS SATIVA
- CANTHARIS VESICATORIA
- CAPSICUM
- CARBO ANIMALIS
- CARBO VEGETABILIS
- CARBOLIC ACID
- CARDUUS MARIANUS
- CASTOREUM
- CAULOPHYLLUM THALICTROIDES
- CAUSTICUM
- CEANOTHUS
- CEDRON
- CHAMOMILLA MATRICARIA
- CHELIDONIUM MAJUS
- CHENOPODIUM
- CHIMAPHILA UMBELLATA
- CICUTA VIROSA
- CIMEX LECTULARIUS
- CINA
- CINCHONA OFFICINALIS
- CLEMATIS ERECTA
- COCCULUS INDICUS
- COCCUS CACTI
- COFFEA CRUDA
- COLCHICUM AUTUMNALE
- COLLINSONIA CANADENSIS
- COLOCYNTHIS CUCUMIS
- CONIUM MACULATUM
- CONVALLARIA MAJALIS
- COPAIVA
- CORALLIUM RUBRUM
- CROCUS SATIVUS
- CROTALUS HORRIDUS
- CROTON TIGLIUM
- CUBEBA
- CUPRUM METALLICUM
- CYCLAMEN