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ORONO WEEKLY TIMES, THURSDAY,_DECEMBER 19thi, 19)68 'Produion of- enn at the rnsive new St. IMary's Cerent Coman panIt jus-t west of Bow- nille could begin within a ýweek. Projct manager Ken MVacKen- _ïie says cntuto is complete anai-l uhatss-of the plant oper- îfnr the f'l griding~ ae Actual costucio bgan a littie nmore than 20 -ronths agco snAil1, 19(à7. neie nticipates i-ian anual pro- 'lI'icimi pf Z00O0bresof 'emrent - abo)ut bau th de o ~the moGther plant atSt Mary's At 350 rounds to the hrrlthe -3ant ibe nroducing O000 ~9D pundsof cernentyery Mlovement of , C4thef nhe ro- Orgna2sthimte of j-'the cost ~~~f'b buligteplant was $15,- ýý,011 but te cornpany ne-iolong- Callyour Phone 983-52,7,ronoaw ' Oxford BRICKLAYERS S TON EMASONS NW. Schmahl 983-5606 Speeaîizng 1 aU kiklils of STNWORK and FIREPLACES Rep)aîrs SIPPIN Dolis 5 9<c- Z219 Jig Saw Puzzles M0c t. $5.25 New Records 'Ç' ts for the Smoker Gift Wrap MIDOLETO F ' ms f)ÉRONO, ONTARI er wants to discl t cause is bas -jui- muceh.' à A permanent u men man the o The 753-acre cated in Darlin west of Bowmanv dary. [ose the cost he- nped araund ton vork force of 80 peration. plant igton ille's site iis' b- Township west boun- The ecnmpany says the site con- tains enough limestone - the mrain ingredfient In the manufact- ure of ceinent, ta continue pro- duction for 80 years. The excava- 4 tion will be 100 feet. I The cernent making process Schanges r-aw limestone rock to .portland ilcernent - a powder sa e fine nearly ail of it will pass *through a sieve with 40,000 open- ings to the lnch - a sieve tha-t wili hold water. f The ýplant has airýeady built up a limestone stockpile next ta the tquarry site where a mechanical griding process reducýes the rocek to convenient six-inch dim- ensions. ' The St. Mary's process makes hýeavy use of conveyor beits from this stage on. Shuttle conveyors take the rock f-om the twin -silo storage facil- ity to a screen bouse where it's sorted and waste removed. Raw grindîng takes place in the ,secondary crusher. Here the limestone is reduceil to fragment no greater than three quarters of an inch in diameter. Aiter crushig, the raw mater- ils ace. blended ta get uniform quality and the desired compo- sition i the final ipreduct. A fine grinding process, which can be cither wet or dry, takes *place after mixing. The St. Mary's platt uses the' older wet proeess, in use in Europe before the manufacture of portland cernent began in the _. S.' The raw mateâ-als are f£ed into a milI for grinding. During grind- ing water is added until, a thit mud câlled "slurry' forrns. The Slurry is then stored in large tank~s where further mixîng takes place. The nexýt process is the most vital in the manufacture of port- land, cernent. The kiln, a long graduai sloping tube more than 12 feet ia inside diameter, is the largest piece of moving machin- ery used by any Industry. Rotating one turn _a minute, it burns the Aturry. at 2,700 degrees fabrenheit into portlaiid cernent clinker. After cooling the clinker can b )e stored for lenýgtby periods It cau be aecumulated and then used to speed production when dema:d is greatest. In the fiinal stage of the man- Lifacturng process the clinker is mixed wvith a small- amount of gYPsum. and enters the last bat- tery of grinýding anilis where it is redueed to a fiine poîwder readyý for paekaging. Èýea 0 5SIesTo Re Beginninig in May, 1967, 'Quint' the antigen containing Diphther- la, Tetanus, Wbhoeping Cough, Polio and Measles vaccine has been offered to infants between the ages of 3 months and 9 months, at ýChild Healtb Cicis. Any infant who did not receive this combined antigen could stili establash -immunity by having a single injection of Edmonston MeasIes vaccine- between 12 and 15 months of age. In September 1967 the Depart- ment of Health of Ontario institu- ted a programme of measles i]M- munizatien for heginners ia the schoo&s. The Northumberland and Durham Health Unit bas carried this out by offering measies vac- cine to ail beginners in schools in the area.1 Durîng the Faîl of 1968 there were 2497 cbildren, begin.ning sehool, and of these, 35.9% bad hadthe disease and 20.2 percent had previously received measies vaccine. Therfore there *were 1098 children eligible to receive the vaccine tbrougb this program and of these, 670 were immuniz- ed. The number of susceptible cbildren in the beginning grades is only 17 percent, but it is re- greted that permission was not given by the parents for these children to receive the vaccine. It is boped that many of them received it from their, family PLbYsiciian. lt is expected that continuation Of -this programmne on the same basis for tbree additional years will make a case of measles in scbool a very rare occurance. The current school year will be four days shorteý, but Grade 13 students who dono have to write final exarninationsý will be kept in class five dy longer than last year. This bas nany students across the Province on the move and on Wednesday, some 150 stu- dents at Courtice lligh sehool protested with a demonstration. "The cost to the Public for se- condary schoois is $2,500,000 for each legal school day," stated Education Minister William Da- vis rwhen sPeaking to the legisia- ture this wveek. "'The cost is borne wbether the schools are open or cbosed," he saiçi. Teach- ers, for example are paid for 10 monthis teaching wbether or not students are present. The final day of school for al grades is officially JuÙie 27, 1969. It was June 28th in 1968. 1The year actually is four days shorter than 1967-68 because of a longer twe week Christmas holiday. Mr. Davis said that in the five Years before deparnmental exam- mnations Kvere eIlninated ,for Grade 13 students the date on ,yhich tbe'last papers were writ- ten varied betîween June 21 and june 29th. In 1968, the first year without final examninations, students with an av erage of 60 per cent were cxcused from sehool June 3rd. ,'This ini effeet rcduced the sChool y7ear te nine months for secondary schools, leaving 179 days for instruction cornpared to 198 days for elementary pupils". This year, classes will contin- ue until June 13, when students not required to write final exam- inations will be excused. This means 184 days of regalar classes, five more than last, year. Students who have to write locally-set Grade 13 examinations will begin wrTiting June lOth. Gýrandf prix-stye racing on the Lakeshore Blvd. and the Cana- dian National Ehbiingroundis rnay be a reality thius summer. Attorney Geneýral Arthur Wisb- art cleared the, way for the Lakeshore Raceway Co. to hold BIow Té Mosport Reading a, prepared st9teu1eI Mr. 'Wisbart tod the legisiature thiat neither the approval of the Lieutenant Governor-ilýeounefl (the cabinet), nor the approvai of a minsiter of the Crown is re- quired by the laws of the Provin- ce for enactment of the road clos- ing by-law. "This. is a matter which is paticularly associated with the ratepayers' and the municipal cou nelîlors. 1"In the circurnstances, it is en- tirely appropriate that the muni- cipality should have every right to resal3ve the question in,,a nian- ner best suited to meet the bieeds of the people." its races as soon as Metro Coun-, cil gives third and final reading to a by-law now befere it whÎch will allow thé road to be, closed for the racing., COPLOR TV Makes au ideal gift with years and years of enjoyment for every-member of the family. See our full Ihie of televisions. PORTABLE TVs, lIt-FIs RADIOS - STOVES RECORD PLAYERS REFRIGERATORS - WASIIEXS - DRYERS TOASTERS Phone 983-5108 Orono, Ontaio . KETTLES - IRONS - Etc., ORUONO ELECTRIC IV Santa will visit his y oung admirers ini rono ion Friday, Saturday and lVonday at the McKenzie Store. Friday - 3 _ýo 5 and 7 to, 8:30 Saturday ,- 3 to 5 Monday- 3 to 5 land 7 to 8:30 Courtesy- Orono Chamber of Commerce - ------~--~------ ~- -