Page 63 — Line 3 Add. 



Below the Nautilus bed are seven feet of shales, poorly exposed 

 and containing a fauna similar to that of the overlying shales. 

 —Line 4, after Nautilus bed insert: 



and the seven feet of shale below it, 



— Line 11, for "immediately" read seven feet. 

 —Line 12, for "fifty feet" read fifty-seven feet. 



Page 64— Line 26 from top, for "The Strophalosia and Nautilus beds", etc., 

 to end of sentence, read : 



The Strophalosia bed is seen everywhere in this part of the 

 section, from six to seven feet below the top of the cliff, forming 

 a narrow band; the Nautilus bed is occasionally seen forming the 

 top of the cliff. 



- Line 22 from top, for "fifty feet" read fifty-seven feet. 

 Page 67— Line 23 from top, before "Nautilus bed" insert: 



shales below the 

 Page 71— Line 9 from top, for "lamellibranches'' read lamellibranchs. 

 Page 94— Under New Species insert, Cornulites hamiltonice. p. 150. 

 Insert ( ) as follows: 



P. 129, Craspedophyllum archiaci. (Billings). 

 P. 145, Taxocrinus nuntius. (Hall). 

 P. 167, Fistulicella plana. (Hall). 

 P. 1S4, Orbiculoidea lodiensis. (Vanuxem). 

 P. 1S4, Schizobolus truncatus. (Hall). 

 P. 194, Stropheodonta demissa. (Conrad). 

 P. 196, Stropheodonta perplana. (Conrad). 

 Remove ( ) 



P. 199, Stropheodonta nacrea. Hall. 

 Page 273— Under figure 19S, for "from Hall" read after Hall. 

 l-.^e 270— Line 8 from bottom, for "Portloch" read Poitlock. 

 Page 292 — Nautilus magister. 



The very fine specimen illustrated in plate 2S was found by 

 Dr. R. T. Jackson, and presented by him to Yale University 

 Museum. The photograph was obtained through the courtesy 

 of Prot. Charles E. Beecher of Yale University. 

 Page 303 — For "Jones and Hall" read Jones and Holl. 

 Page 333 -Line 17 from top, for "neytonic" read nektonic. 

 Page 346 — Line 2 from top, for "Beel" read Bell. 

 Page 349— Line 23 from top, for "earth worm" read aquatic worm. 



Line 24 from top, for "Lumbriusc" read Lumbriculus. 

 Page 350 — Line 25 from top, for "bachiopods" read brachiopods. 

 Page 351 -Line 5 from bottom, for ".)/. pkascolinus" read M. phaseolinus. 

 Page 353— Line 4 from bottom, for "Pidium" read Pisidium. 

 Pages 366 and 3(17— for "Ortman" read Ortmann. 



