31. This was mainly derived from low grade metamorphic rocks of the Variscan basement. 32. Quartz pebble conglomerate uranium deposits are typically low grade but characterized by high tonnages. 33. Low grade races are considered claiming and maiden claiming races.34. *has made many low grade deletions and caused general trouble. 35. Just when I was about to be discharged, I developed a low grade fever, 36. :: eBay does definitely sell radioactive materials of low grades . 37. Currently only low grade accommodations ( pensions ) are available. 38. Still another study had found that low grades in school were the best predictor. 39. The report also gave low grades to other coastal regions in the United States. 40. Research has associated paranormal belief with low grades have less belief in the paranormal.