Renovation work in the Natural History Survey Library will require extra patience by patrons for another month. The library - located in 196 Natural Resources Building - is undergoing renovation until Oct. 4. Staff members - now working in 174 Natural Resources Building - are only allowed entry to the stacks once a day to retrieve documents. This means requests for materials will likely require a 24-hour turnaround time. There is an IO+ online catalog terminal and a photocopier available for use in Room 174. The library is open from 8 a.m. to noon and 1 to 5 p.m. weekdays. More information is available from librarian Erin Nagorske at 244-4907.