Sabadilla
Sabal Serr (Saw Palmetto)
Sabina (Juniperus Sabina)
Saccharin
Saccharum Lac (Lactose)
Saccharum Off (Sacc Alb, Sucrose)
Saker Falcon (Falco Cherug)
Salamander (Salamandra maculata)
Salamandra maculata (Salamander)
Salicylic Acid (Acid Salicylicum)
Salivary Gland
Salix Alba
Salix Fragilis
Salix Nigra
Salmo trutta (Trout, brown)
Salmon (Atlantic)
Salmon (Sock-eye, Oncorynchus)
Salol
Salt (Table)
Salticus scenicus (Jumping spider)
Salvia Off (Sage)
Salvia Sclerata
Samarium Brom
Samarium Carb
Samarium Fluor
Samarium Iod
Samarium Met
Samarium Mur
Samarium Nit
Samarium Oxydatum (Met)
Samarium Phos
Samarium Sulph
Sambucus Can
Sambucus Nig
San Pedro Cactus (Trichocereus Pachanoi)
Sand
Sand Lizard (Lacerta Agilis)
Sandalwood (Santalum Alb)
Sandstone
Sanguinaria Can
Sanguinaria Nit
Sanguis Myotis (Bat's Blood)
Sanguis Soricis (Rat Blood)
Sanguisorba Off
Sanguisuga Off (Hirudo Verbana)
Sanicula Aqua
Sanicula Europeum
Santalum Alb (Sandalwood)
Santoninum
Saponaria Off (Quillaiae Sap)
Sapphire 
Sarcolacticum Acid (Acid Sarcolacticum)
Sarothamnus (Spartium, Cytisus Scop)
Sarracenia Purp
Sarsparilla (Smilex Med)
Sassafras
Saw Palmetto (Sabal Serr)
Scallop (Pectens Jacobaeus)
Scallop, American (Venus Merc)
Scammony
Scandium Met (Scandium Oxy)
Scandium Mur
Scandium Phos
Scandium Sulph
Scarlatinium
Scarlet Fever
Scarlet Macaw (Ara Macao)
Sceliphron caementarium (wasp, mud dauber)
Schinus Mol
Schuessler Tissue salts combination
Sciatic Nerve
Scilla (Squilla Mar)
Scirrhinum
Sciurus Vulgaris (Red Squirrel)
Scleranthus
Sclerosis
Scolopendra
Scolopendra cingulata (centipede)
Scorpio Europaeus
Scorpion (Androctonus amurreuxi)
Scrophularia Nod
Scutellaria Lat
Sea Anemone (Anthopleura Xanth)
Sea Anemone (Hawaiian, Heteractis Malu)
Sea Anemone (Stoichactis Kenti)
Sea Buckthorn (Buckthorn, Hippophae Rham)
Sea Horse, Seahorse (see Hippocampus)
Sea Pineapple (Halocynthia Roretzi)
Sea Salt (Natrum Marina)
Sea Turtle (Hawksbill, Eretmochelys imbricata)
Sea Turtle (Olive Ridley, Lepidochelys Oliveacea)
Sea Urchin (Flower, Toxopneustes Pil)
Sea Urchin (Strongylocentrotus franciscanus)
Sea-gull (Larus Argentatus)
Seal (Antarctic Fur, Arctocephalus Gazella)
Seal (Phoca Vitulina)
Sealer (vinyl)
Seaweed (Porphyra)
Secale Corn (Claviceps Purp, Ergota)
Secretin
Sedum Acre
Selenite
Selenium Met
Selenium Mur
Semen (human)
Sempervivum Tect
Senecio Aur (Senecio Grac)
Senecio Cin (Cineraria)
Senecio Jac
Senega
Senna (Cassia)
Sepia
Sepik Blue Orchid (Dendrobium Las)
Sepioteuthis sepioidea (squid)
Sepsin (Pyrogenium)
Septicaeminum
Sequoia Giganteum (Redwood Tree)
Sequoia Sempervirens (Redwood Tree)
Serinus Canaria (Canary)
Serinus Serinus (Yellow Finch)
Serotonin
Serpentaria
Serum Anguillar Icthyotoxin (Eel Serum)
Serum Anti-Leptospira (Ant Lept Ser)
Serum De Yersin
Sesame Oil
Shark Liver (see Galeocerdo – Tiger Shark)
Sheathbill (Snowy, Chionis Alba)
Sheep Nosodes - specialist use only
Shellac (Lacca Gumm)
Shrew (Sorex Alpinus)
Shrimp (Palaemon, Prawn)
Shrub Pollen
Siberian Ginseng (Eleutherococcus)
Silicea (Silica)
Silicea Mar (Aqua Marina Sil)
Silicol
Silicone (Dimethicone)
Silkworm (Silkmoth, Bombyx Mori)
Silphium Lac
Silybum Mar    (Carduus Mar, Milk Thistle)
Sinapis Alba (White pepper)
Sinapis Nigra (Brassica Sinapis)
Sinus
Skatol
Skin
Skookum Chuck (Aqua)
Skua (Antarctic, Catharacta MacCormicki)
Skylark (Alauda Arvensis)
Slag
Sloth (Bradypus tridactylus)
Slug (Arion hortensis)
 
Small Intestine
Smilex Med (Sarsparilla)
Snail (Cepea Hortensis)
Snail, cooked (Helix Tosta)
Snail, edible (Helix Pomatia)
Snail, garden (Helix Aspera)
Snow Leopard (Panthera Uncia)
Snow Petrel (Petrel, Pagodroma Nivea) 
Snowy Sheathbill (Chionis Alba) 
Sock-eye Salmon (Oncorynchus)
Sodium Benzoate (Natrum Benz, E211)
Sodium Beryllium Phosphate (Beryllonite)
Sodium Chlorate (Nat Chloricum)
Sodium Hydroxide (Nat Causticum)
Sodium Hypochlor (Nat hypochlor)
Sodium Hypochorate
Sodium Metabisulphate (E223)
Sodium Mono/bi/triphosphate (E399)
Sodium Nitrate (E251)
Sodium Nitrite (E250)
Sodium Salts (see Natrum)
Sol
Solaninum
Solanum Dulc (Dulcamara)
Solanum Lycop (Lycopersicum)
Solanum Malac
Solanum Mammosum
Solanum Mel (Aubergine, Eggplant)
Solanum Nig
Solanum Tub
Solanum Tub Aeg
Solidago Virga-Aureus
Somatotropin
Sorbus Auc
Sorex Alpinus (Shrew)
Southern Giant Petrel (Macronectes Giganteus)
Soya Flour
Sparrow (Passer Domesticus)
Sparrowhawk (Accipiter Nisus)
Spartium (Cytisus Scop, Sarothamnus)
Spectrum (full colour, rainbow)
Spengler (Tub Spengler)
Sphenicus Humboldti (Humboldt Penguin)
Sphiggurus spinosus (Hystrix Prehensilis, Sphingurus Martini, Porcupine)
Sphingurus Martini (Hystrix Prehensilis, Sphiggurus spinosus, Porcupine)
Spigelia Ant
Spinach (Spinacia Oleracea)
Spinacia Oleracea (Spinach)
Spinal Cord
Spinalis 
Spiraea Ulm
Spiranthes
Spiritus Nit Dulc
Spiritus Quercus Gland (Quer Spir Gl)
Spleen
Spongia Tosta
Springbok (Antidorcas marsupialis)
Squid (European, Loligo Vulg)
Squid (Sepioteuthis sepioidea)
Squilla Mar (Scilla)
Squirrel (Red, Sciurus Vulgaris)
SR 170987
SSC (Silica/Sulphur/Carbo Veg)
Stachys Betonica (Betonica Off, Stachys Off)
Stachys Officionalis (Betonica Off, Stahcys Betonica)
Stainless Steel
Stannum Carb
Stannum Iod
Stannum Met
Stannum Mur
Stannum Nit
Stannum Sulph
Staphisagria (Delphinium Staph)
Staphylococcinum
Staphylococcus Albus
Staphylococcus Aureus (Haemolytic Staph)
Starch (Corn)
Starfish (see Asterias,  Antedon,  Acanthaster)
Stellaria Med
Sterculia Acum (Kola)
Stibium Crude
Sticta Pulm
Stigmata Maidis (Zea)
Stillingia Sylv
Stilton (Blue Cheese)
Stingray (Torpedo nobiliana, Atlantic stingray)
Stoat (Mustela Erminea, Weasel)
Stoichactis Kenti (Sea Anemone)
Stomach
Storage Mite (see Lepidoglyphus, Tyrophagus, Acarus)
Storage Mites (mixed)
Stork (Ciconia Ciconia)
Stramonium
Stramonium Carb
Strangler Fig (Ficus Villosa)
Straw (mixed)
Streptococcinum
Strix Nebulosa (Lapland Owl)
Strombus gigas (Queen Conch)
Strongylocentrotus franciscanus (Sea Urchin)
Strontium Arsen
Strontium Brom
Strontium Carb
Strontium Fluor
Strontium Iod
Strontium Met (Strontium Hydrox)
Strontium Mur
Strontium Nit
Strontium Phos
Strontium Sil
Strontium Sulph
Strophanthus Hisp
Struthio camelus (Ostrich - feather)
Strychninum
Strychninum Nit
Strychninum Phos
Strychninum Sulph
Strychninum Val
Succinicum Acid (Acid Succinicum)
Succinum (Amber)
Sucrose (Sacc Alb, Sacc Off)
Sugar Beet
Sugar Cane
Sulphonal
Sulphur
Sulphur Crested Cockatoo (Cacatua sulphurea)
Sulphur Iodatum
Sulphuric Acid (Acid Sulphuricum, Acid Sulph)
Sulphurous Acid (Acid Sulphurous)
Sumbul (Sumbulus, Ferula Mosch)
Suncreams (mixed)
Sunset Yellow (E110)
SUP 468
Suprarenal Gland
Suricata Suricatta (Meerkat)
Sus Scrofa (Boar, Wild Boar)
Swallow (Hirundo Rustica)
Swan (Bewick - Cygnus Columb Bewickii)
Swan (Mute - Cygnus Olor)
Swan (Tundra - Cygnus Columbanus)
Swan (Whooper - Cygnus Cygnus)
Sweet Itch (Culicoides Impunctatus, Mixed UK Midge)
Sweet Itch (Culicoides Mix)
Swimming Pool Water
Sycamore Seed
Sycotic Co (Paterson)
Symphoricarpus Rac
Symphytum Off
Syphilinum (Lueticum, Luesinum)
Syringa Vulgaris
Syzygium Jamb