as noted above the invention is particularly advantageously employed when the subterranean formation surrounding the well bore to be fractured has a temperature greater than 180 u00b0 f up to 280 u00b0 f or more it being understood that other subterranean formations which surround the well bore which may or may not be integral with the subterranean formation having the aforesaid temperature may or may not be fractured and may or may not have the aforesaid temperature range in one embodiment of the invention the step of providing the fracturing fluid e g preparing and mixing the fluid on site is carried out at a temperature of 90 u00b0 or 100 u00b0 f or less the fracturing fluid thereby being maintained at a temperature of 90 u00b0 to 100 u00b0 f or less prior to the injecting step this serves to reduce premature breaking of the crosslinked polysaccharide and sanding out of the fracturing fluid as discussed above the present invention is explained in greater detail in the following non limiting examples where 34 dsm 34 means deutsche sammlung von mikroorganimen braunsschweig federal republic of germany 34 m 34 means molar 34 u03bcm 34 means micromolar 34 u03bcm 34 means micrometer 34 ml 34 means microliter 34 l 34 means liter 34 mg 34 means microgram 34 g 34 means gram 34 rpm 34.