i GRIST INDEX 1972 ARTICLES page page page ACCIDENTS Do it yourself environmental Litter pick up. Reflectors used in prevention of handbook 66 an aid to 14 deer-auto aceidents 3 Drinking fountain from tree stump 4 Wildlife-auto 3 Drum competition 53,68 Adapter, fasten 2-prong adapter to appliance .... 30 MARKER, barrier 72 Aeration, bottom water out 71 Medium has a message 61 Aerosol can safety 55 ELECTRIC paint mixer 72 Mosquito "thermometer" 3 AM transmitting devices the medium Electrically, on being charged 63 Motor watchmen 68 has a message 61 Engraver modification for copy Anchors, scratchless, quite 50 enlarging 41 Archery, fun but dangerous 45 Environmental study areas 24 Ash trays, portable, featherweight 21 Environmental education NAME plates, Automatic sewage sampling 29 Environmental handbook 66 salvage broken 31 Automatic motor watchmen 68 Expand concept of environmental National Parks Centennial Axes, pulaskis 21 education 26 1872-1972 1.12 Environmental effects of off-road National Recreation & Park Asso., vehicles 2 Grist Awards 69 Eutrophication, bottom water out 71 Noise pollution 2 Non-slip treading for vehicles 10 BARRIER marker 72 Bears, safe release of 16 Biological waste systems 56 Birds, housing project for the 41 FUSES, Blasting caps, on being charged 63 Charge for electricity by fuse size 57 Boating, learn at home 46 Film programs, ON-THE-RUN roadside litter catch 5 Boating safety reminders 47 useful tips for 41 Order out of chaos in the pickup 22 Body splint, one-man application 47 Fire danger-dry grass, pine needles, Brake plate adds efficiency & and vehicle exhaust 44 safety to rescue operations 45 Fire pump conversion of forester 59 Flocculants, Lake Ncedwood 67 PAINT, mixer electric 72 Front-end loaders, counterweight for 5 Parks to the people 27 Park programs 37 Personal commitment and personal CAMERA safari 16 touch 36 Camping cautions 29 GOLD Medal Awards 37 pH Meter, solid state digital 6 Camping, sanitary disposal from Graffiti removal correct listing for pH System, compact 5 trailers 8 "D Mark" 47 Photographic copying device 51 Camping food catalog 62 Grist Awards 69 Picnic tables Cans, pollution-what can I do 49 Alumn-a-plank picnic table 30 Cart for moving chairs 20 Preparing for refinishing 30 Catching the motorist's eye 72 Place to play 3 Centennial, National Parks 1 Play structures 36 Chain saw, dull blades 35 HAMMER'S utility, increase your 60 Play units 3 Charge for electricity by fuse size 57 Horticulture, hard hat 21 Playgrounds, Chemical skin protects buildings, Hose reel for sprayer 19 star structures for 18 monuments 60 Hot water, getting yourself into 70 Plywood snowshoes 64 Chlorine, residual monitoring and Housing project for the birds 41 Pollution-what can I do 49 control 34 Pop top collector 14 Cleaning methods for routed signs 50 Portable high-pressure washer 7 Coaster pads save tiled floors 58 Precipates, Lake Needwood 67 Communicators using decals as 41 IDENTIFICATION for museum Projector lenses, caring for 51 Compact complete pH system 5 specimens 36 Projection screen, frosted glass Conservation directory 40 Interpretation rear-projection screen 40 Converting equipment from handpulled Before the mountain was moved 15 Protection - to tractorpulled 24 Concrete metalphoto label holder 15 Chemical skin protects buildings, Counterweight for front-end No cost, ready made brochure monuments 60 loaders 5 holder 15 Frames for tractors, and crawlers 46 Cover for fire rake handle 33 Talking slides 15 Traffic counter protection 54 Crampons increase safety 44 Interpretative laboratory 61 Cutting table, glass rack for Insect bites 42,43 small space 34 Cycles, three-wheeled, for recreation sites 6 QUICK change sign holder 63 LADDER, paint tray for extension 31 Lake Needwood, another look at 67 DECALS as communicators 41 Lamp holder saves trees 48 RAIN repellent for stetsons 20 Digesting toilet 53 Light globes, unbreakable 53 Rear view mirrors for slow moving Display rack 40 Litter bags revisited 53 equipment 22 Disposal Campsite dishwater 14 Litter catch, roadside 5 Recreation sites, use of three-wheeled Dissolved oxygen, new analyzer for Litter cart stabilizers 19 cycles in operation and maintenance water pollution control 70 Litter devices 52 of 6 VOLUME 16 GRIST ii CONTRIBUTORS page page page Reflective rubber road shoulder TEMPORARY sign, quick, stable 36 AB CLIVUS 57 marker 11 Termites, historic landmarks benefit Ahrens, R.H 68 Reflectors prevent deer-auto mishaps 3 from industries' public service Allard, Chester K 72 Refuse, rack for can 28 programs 33 Allendon Industries 47 Rehabilitation of surface mine area 50 Test for suspended solids simplified 52 Allentown Pennsylvania 38 Three-wheeled cycles for recreation Rescue operations, brake plate adds American Association for State and efficiency, safety to 45 sites 6 Local History 33 Revegetating ski slopes 71 Tiled floors, coaster pads save 58 Road barrier 65 Time check, automatic check on American City 60 Road shoulder, reflective rubber electric current 23 American Museum of Immigration 12 marker for 11 Time saver, for ranger 59 Amistad RA 33 Toilets, recirculating chemical 32 Anacostia Community School 25 Tool power, anywhere 20 Anacostia Neighborhood Museum 26 SAFETY Traffic counter protection 54 Anderson, Dr. Jackson M 39 Trash container, Colonial style 17 Aerosol can safety 55 Anderson, Jack N 61 Tree stump drinking fountain 4 Brake plate adds efficiency, safety to Anderson, Lewis D 46 rescue operations 45 Trees, lamp holder saves 48 Analytical Measurements, Inc 5,6 Bush hog safety shield 34 Trimming, eliminate hand trimming Crampons increase safety 44 around grave markers 17 Arapaho National Forest 6 Electric tools and equipment, Truck mounted snowplow, safety Atlanta 53 shock-proofing of 8 device for 58 I-Beam for grease rack 7 Turf Insect bites 42,43 Prevent scalping 20 Protection against protuberances 18 Spiker modification 24 Non-slip treading for vehicles 10 BATON Rouge 38 Reflective rubber road shoulder Beard, Daniel 15 marker 1! Bent's Old Fort, NHS 72 Safer battery acid dispenser 22 UNDERWATER rescue lanterns 72 Bethelem Steel Corp 49 Safer operation of dock hoist 22 Urinals, screens in drains 23 Bexley, Ohio 39 Safety device for truck mounted Bicycle Institute of America 57 snowplow 58 Big Bend NP 10 Safety gamble 46 Black, Don 21,51,53 Safety measure for fire tankers 17 Blanton, C.E 34 Scuba safety suggestion 14 VALVE boxes 28 Self-igniting warning flares 10 Blood, Sweat & Tears 15 Vandalism prevention for audio-visual Blue Ridge Parkway 12,15,50 Suggestions for safe playgrounds 11 boxes 58 Bonny Rescvoir State RA 14,36 Summer safety 28 Variable hitch, multi-purpose 65 Use anti-fogger 23 Varnishing, speed up picnic table 21 Boy Scouts of Canada 64 Walking warnings 18 Vehicle hoists, coded settings for 50 Boyd, Maxine 26 Winter driving hints 10 Vehicle service reminder 55 Boyd, Samuel R 5 Winter fun with safety 59 Boys of the Fabulous Night Winter sports safety 68 Panther Patrol 64 Save crane and operator rental costs 21 Bradley Washfountain Co 70 Saving funds, silent salesclerk 60 WARNING signal for snowplow blade Sandblast gun, reduce wear 63 Briggle, William J 1 Sanitary dumping station problems service 66 Brougham, William P 14,36 solved 8 Washer, lock washer from a tube 32 Brown, George E 23 Waste disposal in wilderness areas 2 Self-igniting warning flares 10 Bureau of Reclamation 63 Water analyzer, for pollution Shield saves sign 51 Burlington 39 control 70 Shock-proof your electric tools and Water clean up, paddlewheel raft for 13 Burnett, James A 24,36,48,60,68 equipment 8 Water temperature gauge for asphalt Butcher, Robert J 22 Shrubbery, distributor 10 protect around memorials 23 Weather warnings 46 Signs What on Earth 2 cleaning methods for routed signs 50 White engine cooling system CALDWELL, Kenneth J 20 Pedestal for 64 modification 60 California Dept of Public Works 61 Shield saves 51 Wilderness sanitation 2 California Parks and Rec. Department 52 Ten cents, thirty minutes: a 48 Wildlife-auto accidents costly 3 Campground & RV Park Management 70 Silt, Lake Needwood 67 Winch, light but versatile 33 Snow rake for roof 4 Canter, Stanley G 61 Wind breaker keeps doors closed 33 Snowmobiles Cape Hatteras NS 12 Winter driving hints 10 Environmental effects of 2 Capital Controls Co 34 Winter fun with safety 59 Hearing protection for operators of 2 Cascade Mountain 71 Winter sports safety 68 Snowplow blade, warning for service 66 Wrench, de-gooser 31 Cates, Curtis G 68 Solid state digital pH meter 6 Chadron State Park 63 Sorber mats 'drink oil' 70 Chamizal, NM 12 Splinter free bench slats 64 Chapman, Howard 1 Stalactite 40 Cherry Creek RA 18,31,36 Stalagmite 40 YELLOWSTONE stamp 44 Storm doors, unbreakable glazing for 33 Chuck Wagon Foods 61 Suggestions for safe playgrounds 11 Cincinnati 37 Sun, too much 47 Concrete-Steel Corp 46 Surface mine areas, rehabilitation of 50 Clark, Larry D 59 Ill GRIST INDEX 1972 page page page Conwed Corp 70 Fort Vancouver, NHS 18 International Union for Conservation CNA Insurance Co 11,18,29,46 Fort Worth 38 of Nature and Natural Resources 1,12 Cole, Jewitt 40 Fairchild, Frank 40 Iuliano, Fedele 22 Colonial NHP 10 Frazier, Lanell V 48 Iverson, Phillip R 48 Colorado Game, Fish, Parks Div. Frederick Douglass Community Center ... 26 14,18,31,36 Fredericksburg & Spotsylvania, NMP 20 Conservation Foundation, The 1,2 Furlong, Albert W 9 Contemporary Films 2 Cooksey, George F 50 JEFFERSON, NEM 12 Cooley, Russell 65 John Muir, NHS 24 Couch, W.Harris 44 Johnson, Donald L 66 Crane, Clark D 33 GARVER, Lennie G 33 Jones, Charles W 23 Craters of the Moon, NM 28 General Electric Company 33,53 Joshua Tree, NM 21,51,53 Crouse, Bruce 44 Gilkerson, Robert D 21 Cunningham, William T 29 Gilletly, Larry E 14 Glacier, NP 12 Glen-Bel Enterprises 20 Glen Canyon, NRA 14 KEITH, Rodney R 13 Good Outdoor Manners Asso 2 King, Lloyd H 4 DAVIS, Eliot 18 Governor Dodge, SP 71 Kingman Lake 13 Dayton Museum of Natural History 66 Granberg Industries 35 Klock, O.