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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - May 16, 1973, Lethbridge, Alberta Wednesday, May 16, 1973 THE LETHBRIDGE HERALD 47 Intensive B.C. forest program claiming dramatic results VANCOUVER Drama- tic results have been achiev- ed by a British Columbia for- est industry company in the first 10 year phase of its "in- tensive forestry" program. As a result of modern and scientific management by MacMillan Bloedel foresters nearly acres of young trees on company managed lands are now growing 10 million cubic feet more each year than nature could produce unaided. This volume of wood is suf- ficient to build 5.000 average- sized Canadian houses. MacMillan Bloedel's plant- ing program in the last dec- ade represents about 25 per cent of the total acreage planted in B.C. by the pro- vincial forest service and all forest industry companies said G. L. Ains- cough, the company's chief forester. During the 10 years a planned program of plant- ing, thinning, spacing and weed (or non-commercial) tree control was carried out as experiments in counter- ing disease, test planting of exotic species and aerial fer- tilizing. In 1962 when the company announced the first intensive forestry program in Canada. it was estimated that 40 million trees would be plant- ed in the first 10 year phase. In fact 43.7 million were planted on acres, 500 acres were spaced and about acres were thin- ned to recover merchantable wood which would otherwise have been lost. Counting planting prior to 1962, the company has planted a total of more than seed- ling trees.) The backlog of implanted land, inherited from the days when the forest industry had neither the responsibility nor the right to reforest other than on the land it owned, has been eliminated, said Mr. Ainscough. Seme 4.380 acres of poorly stocked forest, a proportion of which was hardwood, have been logged and the laind replanted with young conif- ers. In addition acres received treatment for weed tree control and about acres underwent site prepar- ation. "In all acres receiv- ed some form of intensive forestry treatment-during the 10 years, and the harvesting and converting of the addi- tional volume of timber has created hundreds of new per- manent jobs in the said Mr. Ainscough. SEVEN PHASES The program covered seven distinct phases planting of young trees after harvesting, fill-in planting where too few trees per acre were growing, cleaning and spacing of juve- nile stands, stand rehabilita- tion, weed tree control, plant- ing of deciduous trees in cer- tain areas, and commercial thinning. In replanting, fill-in plant- ing, juvenile spacing or thin- ning, and commercial thin- ning, one of the major objec- tives is to have trees grow- ing about 10 feet apart. This particular spacing as- sures each tree optimum sun- light and soil nutrient for rapid growth., In 1962 Angus MJacBean, then chief forester, stated, "the key objective is to en- sure that each acre and each tree is growing a maximum volume of wood each year. The program will assist in maintaining and expanding employment. It will provide our governments with in- creased tax dollars. It will reduce our growing cycle from 90 to 80 years or less and constitute a major step Gamma ray scanner can 4see' internal organs BV JEFF CARRUTHERS Herald Ottawa Bureau OTTAWA A Carleton Uni- versity physics professor has harnassed for modern medicine a technique that is considerably better than Superman's X-ray vision, especially for seeing in- ternal human organs. The technique is called "Com- ORTANT to LETHBRIDGE HERALD DISPLAY AND CLASSIFIED ADVERTISERS EFFECTIVE Friday, June lf 1973 DISPLAY ADVERTISING DEADLINES WILL BE AS FOLLOWS: ADVERTISEMENTS REQUIRING PROOFS (Minimum size V4 page) COPY AND MATERIAL MUST BE RECEIVED AT THE HERALD BY 12 4 PUBLISHING DAYS PRIOR TO PUBLICATION DEADLINE for: MONDAY is NOON PREVIOUS WEDNESDAY TUESDAY is NOON PREVIOUS THURSDAY WEDNESDAY is NOON PREVIOUS FRIDAY THURSDAY is NOON PREVIOUS SATURDAY FRIDAY is NOON PREVIOUS MONDAY SATURDAY is NOON PREVIOUS TUESDAY DISPLAY ADVERTISEMENTS NOT REQUIRING A PROOF MAY BE RECEIVED ONE DAY LATER 12 NOON 3 PUBLISHING DAYS PRIOR TO PUBLICATION CLASSIFIED ADVERTISING DEADLINES ARE UNCHANGED Al! regular and classified display must be in The Herald office 3 p.m. the day prior to publication a.m. Saturday for publication Monday For further information contact Display or Classified Advertising 328-4411 The Letlibridge Herald pton scattering." The machine Dr. R. L. Clarke has developed is called a "Gammatome Scanner." More simply, it is a gamma ray scan- ner. Most important, it offers doc- tors a new, more direct and probably safer way of viewing internal soft issue, such as or- gans. The gamma ray scanner, which was tested on humans for the first time about a month and a half ago here in Ottawa, does away with the bother and the danger of injecting into patients radioactive contrast dyes necessary if normal X-ray photographs are to show such internal organs. Dr.Clarke confessed that he gave in to impatience earlier this year and allowed himself to be the first human subject un- der his gamma ray scanner. The fact that Dr. Clarke has been working on the device for slightly more than 10 years may be a valid excuse for such impatience. In many ways, Dr. Clarke's gamma ray scanner is very similar to a normal hospital X- ray machine: looks about the same. costs about the same. even uses basically the same radiation, for picture tak- ing. Gamma rays are really just X-rays produced by a radi- ation this case, a Co- balt 60 than by an electrical source. But there is a big difference in the way the radiation beam is used to take pictures of inter- nal organs in a gamma ray scanner. Instead of providing a doctor with a silhouette of everything the X-rays pass through "in go- ing from the source to the film, the gamma scanner scans and records on film the radiation that is scattered from tissue in the body as it goes through. The gamma scanner liar- nasses Compton scattering to measure relatively small differ- ences in tissue little as one per cent difference. The gamma ray beam can be focused to scan an area within the body, allowing doctors to see things that might normally be shadowed behind bone in a normal X-ray photographs. Tests on several x'olunteer cancer patients a week frorn the cancer unit at the Civic Hospital during the last month and a half have been very en- couraging, Dr. Clarke says. The scanner was used to take pic- tures of the normal organs of the patients, to show just how versatile the machine could be. It should be noted that the de- vice involves about the same radiation exposure as a modern X-ray machine. But the real test is yet to come. In a few weeks, the scanner will be taken apart and shipped to the new teaching hospital at the University of Western On- tario. There, radiologist Dr. Lewis Carey will use the device for the first time on patients, for diagnostic purposes. Meanwhile, Dr. Clarke intends to start constructing a second prototype and to start making improvements. He says that his device is not expected to replace the normal 'x-ray machine, but to com- plement it. The X-ray is still the best for checking for broken bones and the like. towards operations in perpe- tuity." "When the program start- said Mr. Ainscough, "our aim was to establish, a full range of treatments which would reduce the regeneration period after log- ging and improve the stock- ing and spacing in establish- ed forests. Our target in the first 10 years was to catch up on the backlog of areas requiring planting and other treatments and establish the program on an even-flow basis. This has been achiev- ed." NATURAL STAND r'atural stands about 10 to 15 years of age where trees were growing too thickly were thinned out to 10 feet by 10 feet spacing, giving about'436 trees to the sere. Weak, deformed, and weed (or non coaiferous) trees were removed to concentrate growth on good trees. This will permit commercial thin- ning at 25 to 30 years in- stead of having to wait until stands are 40 years old or more. MacMillan Bloedel was one of the first companies to en- gage in commercial thinning on an active operational scale. In well developed stands trees which are being suppressed by their more vig- orous neighbors would be- come stunted or die if left in the forest. By thinning them out a bonus Of merchantable tim- ber is harvested and growth is concentrated on the healthy trees Which are left, explained Mr. Ainscough. Planting trees As many as seedling trees such as this have been planted to date in B.C. by MacMillan Bloedel. Almost have been planted within the last ten years in the course of Canada's forestry" program. Largely Douglas fir, they will 'be ready for har- vesting in 70 to 90 years. Through scientific forest man- agement MB now is growing, on almost acres, cubic feet more wood each year than nature would unaided. Forester is shown digging hole with mat- tock to plant seedling. A bag of seedlings hangs frorn his shoulder. 7" circular saw is double-insulated for safety. Grounding not required. Motor develops 134 h.p.r 10 amps; no-load speed. 5300 RPM ball, roller and sleeve bearings. Cuts 2x4's at eight 90 or 40. Auxiliary handle for 2 hand control. Reg. power router. Develops h.p. Cuts shapes, grooves and mortises wood or plastic. 100% ball bearings, RPM. Reg. 6" sender-polisher has double insulation. 2-speeds, high (4200) for sanding, low (3500) for polishing. 100% ball and roller bearings. :i h.p. motor. Sectional aluminum housing. Reg. !-i" heavy-duty reversible drill. Removable 4- position rear handle. No load speed 575 RPM. h.p. sleeve bearings. Reg. 23-pc. socket set, incl. six 6 pt. drive from seven 6 pt. drive from to W; four 6 pt. deep sockets to Also in- cludes U" to soc. adaptor, 3 extension bars. Crafts- man' dr. quick release ratchet. In forged heat- treated alloy steei. With box. Hardware Reg. best 6-Ieg gym set has 2" diam. frame of tubular steel rust-resistant enamel. Dura-Kool seats won't get hot under the tun. Set incl. 2-seater Sky-Scooter, 27" wide 4-seater lawn glider, 2 swings. 2-Swing Gym Set with 2-seat Sky-Scooter. Reg. Sale 19.99 19 99 Reg. Toys Sandbox keeps burning sun off for comfy, happy play, towers to cover box when not in use. Steel sides and uprights, approx. sizes there's one for every 7 different types, all with chrome-vana- dium steel blades In plastic handles. Incl. slotted, Reg. from types to choose from! Includes 6" and 8" Long Nose( 6" and 7" Diagonal; 7" Line- man's; 6" and 8" Slip Joint; 10" and 12" Groove Joint. Phone your order and charge it. STORE HOURS: Open daily from a.m. to p.m., and Fri. a.m. to p.m. Centre Village Telephone 328-9231 ;