الفهرس 
acknowledgmentOnly 14 pages are availabe for public view
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Abstract
The rowing interest in stewing the physics! properties of the fouble sunhat oxystele in due to the fact that they ‘show snoraloun bebaviour at different phase traneition temper ntores . Sinele crystals of Lithiua votaseiue sulshate ware arom by slow evaporation nathos frox aquecus solution contaning the Initial aelts at stoichtonetrfe atic. Soncles ia the fora of rots overe cut fron the staple erpatets eine wot string saw with edges parallel to the oxyataliogy euohte neve. A Heraeus was used in studying the temperature Aeventence of thermal exoancton and specific heat at constant. in the tennersture range from A study of the anfsotronte behaviour of the electrical conduc ctivity olone the enystallograshie axes of LAKS is also aade in the tonnerature sange of interest show that at the teovorature clear chenge in the expanston coefficient take place which indicates thot vansition taks place at Te. chense of around the trenoftton temernture Me fakes vlace also with the cherse tn the Renting rate from wins to chase.