The BHL (Biodiversity Heritage Library) links load more quickly than the Cornell links given in my comment below. I generally find them easier to navigate and use.

The BHL links for salient pages of Cole(1919) are:

    Introduction (pg. 1)
        History of the Family (pg. 3)
        Structural Characters (pg. 6)
        Habits of Cyrtidae (pg. 10)
        Early Stages and Life History (pg. 13)

    Keys to subfamilies & genera (pg. 17)
      Subfamily Philopotinae (pg. 18)
        Genus Philopota (pg. 19)
      Subfamily Panopinae (pg. 20)
        Genus Pialeoidea (pg. 20)
        Genus Apelleia (pg. 22
        Genus Ocnaea (pg. 23)
        Genus Lasia (pg. 27)
        Genus Eulonchus (pg. 31)
      Subfamily Cyrtinae (pg. 38) [now Acrocerinae]
        Genus Pterodontia (pg. 39)
        Genus Opsebius (pg. 43) [nearctic members now Turbopsebius]
        Genus Acrocera (pg. 48)
        Genus Ogcodes (pg. 59)

    Explanation of Plates (pg. 76)
      Plate I (endpages)
      Plate XV (endpages) [last plate of paper]

The JSTOR link =v= originally gave above requires a special institutional or personal (pay) account.

But now this reference is freely available online at this Cornell University Library link.