495	LABORATORY AND FIELD EQUIPMENT AND SUPPLIES: BIOLOGY, BOTANY, GEOLOGY, MICROBIOLOGY, ZOOLOGY, ETC.
49505  *	Activity Cages, Mazes, and other Animal Psychology Equipment
49507  *	Agricultural Science Equipment: Diffusive Resistance Meters, Leaf Porometers and Water Potential Measuring Equipment, Seed Counters
 	and Germinators, Soil Sterilizers, etc.
49509  *	Animal Cage and Rack Washing Equipment
49510  *	Animal Cages and Supplies (Including Litter)
49512  *	Animals, Experimental, Not Specially Bred
49513  *	Animals, Experimental, Specially Bred or Selected (e.g., Albino Mice and Rats)
49515  *	Aquariums and Supplies
49520  *	Biology Equipment and Supplies (Not Otherwise Classified)
49525  *	Biology Specimens and Cultures (Except Microbial)
49526  *	Biology Specimens and Cultures (Including Microbial): Complete Ecosystems, etc.
49528  *	Biotechnology and Clinical Equipment and Supplies
49530  *	Botany Specimens
49535  *	Cabinets and Cases, Storage (For Slides and Specimens)
49536  *	Charts, Anatomical and Life Sciences
49537  *	Counters and Counting Chambers (For Bacterial Colonies, Blood Cells, etc.): Hemacytometers, etc.
49538  *	Cultures, Microbial (Living Organism)
49539  *	Dermatomes
49541  *	Fermentation Equipment: Chemostats, Chemotaxis Chambers, Fermenters, etc.
49544  *	Geology Equipment and Supplies
49545  *	Geology Specimens and Collections
49548  *	Incubators: Convection, CO2 (Anaerobic Chambers), etc., and Plant Growth Chambers
49550  *	Herbarium Equipment and Supplies: Drying Cases, etc.
49555  *	Instruments, Dissecting
49557  *	Microscope Slide Preparation Equipment: Staining Racks and Trays, Slide Warmers, etc.
49558  *	Microscopy Supplies: Cement, Immersion Oil, Slide Holders and Mailers, etc.
49560  *	Mounts and Models
49565  *	Museum Preparations and Supplies: Labels, etc.
49569  *	Neuropsychological Testing Equipment: Reaction Time, Rotary Pursuit, etc.
49570  *	Oceanography and Limnology Equipment: Dredges, Thermographs, etc.
49573  *	Physiological Testing and Recording Equipment (Single and Multichannel), and Accessories: Electrodes, Monitors, Stimulators, etc.
49575  *	Prepared Slides (Microscope)
49582  *	Scales, Laboratory (Animal and Human): Autopsy Scales, Underwater Scales, etc.
49585  *	Skeletons: Mounted, Unmounted, and Partial
49588  *	Tissue and Organ Culture Equipment: Cell Harvesters, Roller Drums, etc.
49590  *	Tissue-Processing Equipment and Supplies (For Histology): Cryostats, Flotation Baths, Microtomes,  Paraffin Embedment Systems, etc.
49595  *	Zoology Specimens, Live and Injected