# Library of Congress Classification/Class S

CLASS S - AGRICULTURE
(Click each subclass for details)
| Subclass S | Agriculture (General) |
| Subclass SB | Plant culture |
| Subclass SD | Forestry |
| Subclass SF | Animal culture |
| Subclass SH | Aquaculture. Fisheries. Angling |
| Subclass SK | Hunting sports |
​Subclass S
| S1-(972) | Agriculture (General) |
| S21-400.5 | Documents and other collections |
| S403 | Agricultural missions, voyages, etc. |
| S419-482 | History |
| S530-559 | Agricultural education |
| S539.5-542.3 | | Research. Experimentation |
| S544-545.53 | | Agricultural extension work |
| S548-548.6 | | Historic farms |
| S550-559 | | Exhibitions. Fairs |
| S560-571.5 | Farm economics. Farm management. Agricultural mathematics Including production standards, record keeping, farmwork rates, marketing |
| S583-587.73 | Agricultural chemistry. Agricultural chemicals |
| S588.4-589.6 | Agricultural physics Including radioisotopes in agriculture |
| S589.7 | Agricultural ecology (General) |
| S589.75-589.76 | Agriculture and the environment |
| S589.8-589.87 | Plant growing media. Potting soils |
| S590-599.9 | Soils. Soil science Including soil surveys, soil chemistry, soil structure, soil-plant relationships |
| S600-600.7 | Agricultural meteorology. Crops and climate |
| S602.5-604.37 | Methods and systems of culture. Cropping systems Including fallowing, rotation of crops, plowing |
| S604.5-604.64 | Agricultural conservation |
| S604.8-621.5 | Melioration: Improvement, reclamation, fertilization, irrigation, etc., of lands |
| S605.5 | | Organic farming. Organiculture |
| S606-621.5 | | Special classes of lands and reclamation methods Including woodlands, burning of lands, deserts, saline environments, moors |
| S622-627 | Soil conservation and protection |
| S631-667 | Fertilizers and improvement of the soil |
| S671-760.5 | Farm machinery and farm engineering |
| S770-790.3 | Agricultural structures. Farm buildings |
| S900-(972) | Conservation of natural resources Including land conservation |
| SB1-1110 | Plant culture | Plant culture |
| SB39 | Horticultural voyages, etc. | Horticultural voyages, etc. |
| SB71-87 | History | History |
| SB107-109 | Economic botany | Economic botany |
| SB109.7-111 SB112 | Methods for special areas Including cold regions, dry farming, tropical agriculture | Methods for special areas Including cold regions, dry farming, tropical agriculture |
| SB112 | Irrigation farming | Irrigation farming |
| SB113.2-118.46 | Seeds. Seed technology | Seeds. Seed technology |
| SB118.48-118.75 | Nurseries. Nursery industry | Nurseries. Nursery industry |
| SB119-124 | Propagation Including breeding, selection, grafting, air layering | Propagation Including breeding, selection, grafting, air layering |
| SB125 | Training and pruning | Training and pruning |
| SB126 | Artificial light gardening | Artificial light gardening |
| SB126.5-126.57 | Hydroponics. Soilless agriculture | Hydroponics. Soilless agriculture |
| SB127 | Forcing | Forcing |
| SB128 | Growth regulators | Growth regulators |
| SB129-130 | Harvesting, curing, storage | Harvesting, curing, storage |
| SB169-172.5 | Tree crops | Tree crops |
| SB175-177 | Food crops | Food crops |
| SB183-317 | Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants | Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants |
| SB317.5-319.864 | Horticulture. Horticultural crops | Horticulture. Horticultural crops |
| SB320-353.5 | Vegetables | Vegetables |
| SB354-402 | Fruit and fruit culture | Fruit and fruit culture |
| SB381-386 | | Berries and small fruits |
| SB387-399 | | Grape culture. Viticulture |
| SB401 | | Nuts |
| SB403-450.87 | Flowers and flower culture. Ornamental plants | Flowers and flower culture. Ornamental plants |
| SB406.7-406.83 | | Plant propagation |
| SB409-413 | | Culture of individual plants |
| SB414 | | Forcing |
| SB414.6-417 | | Greenhouses and greenhouse culture |
| SB418-418.4 | | Container gardening |
| SB419-419.3 | | Indoor gardening and houseplants |
| SB419.5 | | Roof gardening. Balcony gardening |
| SB421-439.8 | | Classes of plants Including annuals, climbers, ferns, lawns, perennials, shrubs |
| SB441-441.75 | | Flower shows. Exhibitions |
| SB442.5 | | Care and preparation of cut flowers and ornamental plants for market |
| SB442.8-443.4 | | Marketing. Cut flower industry. Florists |
| SB446-446.6 | | Horticultural service industry |
| SB447 | | Preservation and reproduction of flowers, fruits, etc. |
| SB447.5 | | Bonkei. Tray landscapes |
| SB449-450.87 | | Flower arrangement and decoration |
| SB450.9-467.8 | Gardens and gardening | Gardens and gardening |
| SB469-(476.4) | Landscape gardening. Landscape architecture | Landscape gardening. Landscape architecture | Landscape gardening. Landscape architecture |
| SB481-486 | Parks and public reservations Including theory, management, history | Parks and public reservations Including theory, management, history | Parks and public reservations Including theory, management, history |
| SB599-990.5 | Pests and diseases | Pests and diseases | Pests and diseases |
| SB608 | | Individual or types of plants or trees | Individual or types of plants or trees |
| SB610-615 | | Weeds, parasitic plants, etc. | Weeds, parasitic plants, etc. |
| SB617-618 | | Poisonous plants | Poisonous plants |
| SB621-795 | | Plant pathology | Plant pathology |
| SB818-945 | | Economic entomology | Economic entomology |
| SB950-990.5 | | Pest control and treatment of diseases. Plant protection | Pest control and treatment of diseases. Plant protection |
| SB950.9-970.4 | | | Pesticides |
| SB973-973.5 | | | Soil disinfection |
| SB974-978 | | | Organic plant protection. Biological control |
| SB979.5-985 | | | Inspection. Quarantine |
| SB992-998 | Economic zoology applied to crops. Agricultural zoology Including animals injurious and beneficial to plants | Economic zoology applied to crops. Agricultural zoology Including animals injurious and beneficial to plants | Economic zoology applied to crops. Agricultural zoology Including animals injurious and beneficial to plants |
| SD1-669.5 | Forestry |
| SD11-115 | Documents |
| SD119 | Voyages, etc. |
| SD131-247.5 | History of forestry. Forest conditions |
| SD250-363.3 | Forestry education |
| SD388 | Forestry machinery and engineering |
| SD388.5 | Tools and implements |
| SD389 | Forest roads |
| SD390-390.43 | Forest soils |
| SD390.5-390.7 | Forest meteorology. Forest microclimatology |
| SD391-410.9 | Sylviculture |
| SD411-428 | Conservation and protection Including forest influences, damage by elements, fires, forest reserves |
| SD430-(559) | Exploitation and utilization Including timber trees, fuelwood, logging, transportation, valuation |
| SD561-669.5 | Administration. Policy |
| SF1-1100 | Animal culture | Animal culture |
| SF41-55 | History | History |
| SF84-84.64 | Economic zoology | Economic zoology |
| SF84.82-85.6 | Rangelands. Range management. Grazing | Rangelands. Range management. Grazing |
| SF87 | Acclimatization | Acclimatization |
| SF89 | Transportation | Transportation |
| SF91 | Housing and environmental control | Housing and environmental control |
| SF92 | Equipment and supplies | Equipment and supplies |
| SF94.5-99 | Feeds and feeding. Animal nutrition | Feeds and feeding. Animal nutrition |
| SF101-103.5 | Brands and branding, and other means of identifying | Brands and branding, and other means of identifying |
| SF105-109 | Breeding and breeds | Breeding and breeds |
| SF111-113 | Cost, yield, and profit. Accounting | Cost, yield, and profit. Accounting |
| SF114-121 | Exhibitions | Exhibitions |
| SF170-180 | Working animals | Working animals |
| SF191-275 | Cattle | Cattle |
| SF221-250 | | Dairying |
| SF250.5-275 | | Dairy processing. Dairy products |
| SF277-360.4 | Horses | Horses |
| SF294.2-297 | | Horse sports. Horse shows |
| SF304.5-307 | | Driving |
| SF308.5-310.5 | | Horsemanship. Riding |
| SF311-312 | | Draft horses |
| SF315-315.5 | | Ponies |
| SF321-359.7 | | Racing |
| SF360-360.4 | | Feral horses. Wild horses |
| SF361-361.73 | Donkeys | Donkeys |
| SF362 | Mules | Mules |
| SF371-379 | Sheep. Wool | Sheep. Wool |
| SF380-388 | Goats | Goats |
| SF391-397.83 | Swine | Swine |
| SF402-405 | Fur-bearing animals | Fur-bearing animals |
| SF405.5-407 | Laboratory animals | Laboratory animals |
| SF408-408.6 | Zoo animals | Zoo animals |
| SF409 | Small animal culture | Small animal culture |
| SF411-459 | Pets | Pets |
| SF421-440.2 | | Dogs. Dog racing |
| SF441-450 | | Cats |
| SF451-455 | | Rabbits and hares |
| SF456-458.83 | | Fishes. Aquariums |
| SF459 | | Other animals |
| SF461-473 | Birds. Cage birds | Birds. Cage birds |
| SF481-507 | Poultry. Eggs | Poultry. Eggs |
| SF508-(510.6) | Game birds | Game birds |
| SF511-511.5 | Ostrich | Ostrich |
| SF512-513 | Ornamental birds | Ornamental birds |
| SF515-515.5 | Reptiles | Reptiles |
| SF518 | Insect rearing | Insect rearing |
| SF521-539.8 | Bee culture | Bee culture |
| SF541-560 | Sericulture. Silk culture | Sericulture. Silk culture |
| SF561 | Lac-insects | Lac-insects | Lac-insects |
| SF600-1100 | Veterinary medicine | Veterinary medicine | Veterinary medicine |
| SF756.5-769.5 | | Special preclinical sciences Including veterinary genetics, ethology, anatomy, physiology, embryology, pathology | Special preclinical sciences Including veterinary genetics, ethology, anatomy, physiology, embryology, pathology |
| SF780.2-780.7 | | Veterinary microbiology, bacteriology, virology, mycology | Veterinary microbiology, bacteriology, virology, mycology |
| SF780.9 | | Veterinary epidemiology. Epizootiology | Veterinary epidemiology. Epizootiology |
| SF781-809 | | Communicable diseases of animals (General) | Communicable diseases of animals (General) |
| SF810 | | Veterinary parasitology | Veterinary parasitology |
| SF810.5-810.7 | | Predatory animals and their control | Predatory animals and their control |
| SF811-909 | | Veterinary medicine of special organs, regions, and systems | Veterinary medicine of special organs, regions, and systems |
| SF910 | | Other diseases and conditions | Other diseases and conditions |
| SF910.5 | | Veterinary orthopedics | Veterinary orthopedics |
| SF911-914.4 | | Veterinary surgery | Veterinary surgery |
| SF914.3-914.4 | | | Veterinary traumatology. Veterinary emergencies |
| SF914.5 | | Veterinary acupuncture | Veterinary acupuncture |
| SF915-919.5 | | Veterinary pharmacology | Veterinary pharmacology |
| SF925 | | Veterinary physical medicine | Veterinary physical medicine |
| SF951-997.5 | | Diseases of special classes of animals | Diseases of special classes of animals |
| SH1-691 | Aquaculture. Fisheries. Angling | Aquaculture. Fisheries. Angling | Aquaculture. Fisheries. Angling |
| SH20.3-191 | Aquaculture | Aquaculture | Aquaculture |
| SH33-134.6 | | By region or country | By region or country |
| SH138 | | Mariculture | Mariculture |
| SH151-179 | | Fish culture | Fish culture |
| SH171-179 | | | Diseases and adverse factors |
| SH185-191 | | Frogs, leeches, etc. | Frogs, leeches, etc. |
| SH201-399 | Fisheries | Fisheries | Fisheries |
| SH213-216.55 | | By oceans and seas | By oceans and seas |
| SH219-321 | | By region or country | By region or country |
| SH327.5-327.7 | | Fishery resources. Fishery conservation | Fishery resources. Fishery conservation |
| SH328-329 | | Fishery management. Fishery policy | Fishery management. Fishery policy |
| SH334 | | Economic aspects. Finance | Economic aspects. Finance |
| SH334.5-334.7 | | Fishery technology | Fishery technology |
| SH334.9-336.5 | | Fishery processing | Fishery processing |
| SH337 | | Packing, transportation, and storage | Packing, transportation, and storage |
| SH337.5 | | Fishing port facilities | Fishing port facilities |
| SH343.2-343.3 | | Fishery oceanography. Fishery meteorology | Fishery oceanography. Fishery meteorology |
| SH343.4 | | Fishery research vessels | Fishery research vessels |
| SH343.5 | | Exploratory fishing | Exploratory fishing |
| SH343.8 | | Navigation | Navigation |
| SH343.9 | | Safety measures | Safety measures |
| SH344-344.8 | | Methods and gear. Catching of fish | Methods and gear. Catching of fish |
| SH346-351 | | Fishery for individual species | Fishery for individual species |
| SH360-363 | | Seal fisheries. Fur sealing | Seal fisheries. Fur sealing |
| SH364 | | Sea otter | Sea otter |
| SH365-380.92 | | Shellfish fisheries. Shellfish culture | Shellfish fisheries. Shellfish culture |
| SH381-385 | | Whaling | Whaling |
| SH387 | | Porpoises. Dolphins | Porpoises. Dolphins |
| SH388.7-391.5 | | Algae culture | Algae culture |
| SH393 | | Seagrasses | Seagrasses |
| SH396 | | Sponge fisheries | Sponge fisheries |
| SH400-400.8 | Seafood gathering | Seafood gathering | Seafood gathering |
| SH401-691 | Angling Including tackle, casting, methods of angling, angling for special kinds of fish | Angling Including tackle, casting, methods of angling, angling for special kinds of fish | Angling Including tackle, casting, methods of angling, angling for special kinds of fish |
| SK1-664 | Hunting sports | Hunting sports |
| SK37-39.5 | Shooting | Shooting |
| SK40-268 | By country | By country |
| SK281-293 | Special methods and types of hunting Including bolos, game calling, tracking, trapping, dressing | Special methods and types of hunting Including bolos, game calling, tracking, trapping, dressing |
| SK284-287 | | Fox hunting |
| SK291-292 | | Coursing |
| SK293 | | Ferreting |
| SK295-305 | Big game | Big game |
| SK311-335 | Bird hunting. Fowling | Bird hunting. Fowling |
| SK336 | Varmint hunting (General) | Varmint hunting (General) |
| SK337 | Predator hunting | Predator hunting |
| SK341 | Other game | Other game |
| SK351-579 | Wildlife management. Game protection Including annual reports of game commissioners | Wildlife management. Game protection Including annual reports of game commissioners |
| SK590-593 | Wild animal trade | Wild animal trade |
| SK650-664 | Wildlife-related recreation | Wildlife-related recreation |