Layer Estimates:

Layer: ChicagoPublicLibraries (ID:0)
Count: 77
Extent:

XMin: -9775348.88643614
YMin: 5109407.054358
XMax: -9745773.47451866
YMax: 5161999.97303754
Spatial Reference: 102100 (3857)

Layer: CensusBlocks_Chicago_LibraryAccess (ID:1)
Count: 24523
Extent:

XMin: -9793502.87895413
YMin: 5107098.74960502
XMax: -9738367.17588416
YMax: 5166900.17866606
Spatial Reference: 102100 (3857)