ADDENDA. jii 



Page 168. Add to the definition of the TRACT (A. 143) the 

 following Obs. The tract of a soil, or its visible extent at 

 the surface, may be formed by the surface of the upper stratum 

 only, or by the extremities of several strata, when they have 

 a considerable deviation from the horizontal position. The 

 extremities of such strata are called their outgoings by the 

 Werneriaa school. 



. Add to the definition of A PARTIAL TRACT (b. 151) 

 after the words "of a different kind," or formation, and 

 generally of a larger extent than the one. included"; under which 

 the strata constituting the surrounding tract are observed to dip. 



EMENDANDA. 



PART I. 



% Engagements, which the author could neither postpone nor avoid, have 

 prevented his attending regularly tt> the correction of the press : the reader's 

 indulgence is, therefore, requested for the following errata. 



Page 2, line 5 from bottom, for agreeable, r. agreeably. Del. comma after 



fossil. 



4, 11 from bottom, for Naturalist, r. Naturalists. 

 8, 8 from bottom, (and passim) for vegetable r. vegetal. Vidr 



addenda. 



10, 8, for iuflamable, r. inflammable. 

 13, 3 from bottom, for retain, r. retains. 

 18, 8 for deposited, r. deposit. 



21, 5, for primative, r. primitive. 



22, 12 from bottom, for subteraneous, r. subterraneous. 

 24, 17, for stratafied, r. stratified. 



29, last, for agreeable, r. agreeably. 



31, 11, for regular, r. regularly. 



38, 1, for loged, r, lodged. 



, 11 from bottom, for agreeable, r. agreeably. 



> 39, 2 from bottom, prefix A. as a divisional letter to 1. CONSER- 

 VATION. 



40, 10, prefix a. as a divisional letter to 2. PRIVATION. 



42, 2 and 3 transpose. 



46, 5, prefix b. as a divisional letter to 3. CONVERSION. 



48, 18, for carbonate, r. carbonate. Line 2 from bott. for time, r. lime . 



52 5 from bottom, del. of. 



64, 4 from bottom, for testaceous, r. testal j and passim, when the 

 term testaceous is usrd without reference to the substance 

 of the rtliquium. V. testal, p. 96 and testaceous p. 153. 



72, 3 from bottom, tor Rcliquia, r. Couservata. 



