INDEX 



The superior figures tell the exact place on the pa^e in ninths; e.g. 9' 

 means page y, beginning in the third ninth of the page, i.e. about one third 

 ol' the way down. 



Baltimore lire, observations on, 10^ 

 Biu:kley, experiments, 7*-8*; cited, 

 i)\ 28', 36" 



Conglomerates, relractoriness, 7' 

 Cutting, inviistigations, ft"-?"; cited. 



Diabase, ])ctrographic description, 



30" 

 Dolomite, refractoriness, 9" 



Fire, effect on stone as observed in 

 conflagrations, 9^-12*, 36' 



Fire tests, description, i6'~2S; on 

 granites and gneisses, i7''-i9; on 

 limestones, 22-23; on marble, 24- 

 25; on sandstones, 20-21; sum- 

 mary, 26'-28'* 



Flame tests, i6"-i7^ 28" 



Furnace tests, 16" 



Gneisses, percentage of alisorjition, 

 13; fire tests, 17^-19, 26", 27*; 

 flame tests, 28"; locality, 13; 

 petrographic description, 13, 32^; 

 company ofjcrating (juarry, 13; 

 order of refractoriness, 28"; use, 13 



Granites, percentage of absorption, 

 13; effects of Baltimore fire on, 

 11^; fire tests, i7'*-i9, 26', 26"; 

 fhuTie tests, 28"; locaHty, 1:3; 

 petrographic description, 13, 29' - 

 30", 3i''~32''', 32^-33'; company 

 operating quarry, 13; refractori- 

 ness, 6*, 7^ 8^ 9', 9", 10"; order of 

 refractoriness, 28"; use, 13 



Grieshaber, cited, u''* 



Limestones, percentage of absorption, 

 1 5 ; effects of Baltimore fire on. 



II*; fire tests, 22-23, 26", -tH'; 

 flame tests, 28''; locality, 15; 

 petrographic description, 15, 34''- 

 35^; company operating quarry, 

 iS; refractoriness, 7', 7'', 8", 9", 9*; 

 order of refractoriness, 28"; use, 15 



Marble, percentage of absorjjtion, 1 S ; 

 effects of Baltimoro fire on, it*; 

 fire tests, 24-25, 26", 28';* flame 

 tests, 28*, 28"; locality, 15; petro- 

 graphic descri{M.ion, 15, 35'-36*; 

 company operating quarry, 15; 

 relTactoriness, 7', 7''; order of re- 

 fractoriness, 28"; use, IS 



Medina sandstone, percentage of ab- 

 sorption, 27"; fire tests, 20", 21 



Merrill, C P., cited, 8»-9», 36''' 



Norite, i)etrographic description, 31' 



Oxford sandstone, fire tests, 20^, 21; 

 I)ercentage of absorption, ■j.']^ 



Petrographic <les<Ti|)lion of stones 



tested, 29'"-36' 

 Potsdam stone, fire tests, 20", 21; 



percentage of absorption, 27" 



Refractoriness of l)uilding stones, 

 previous investigations, 6'-9', 36' 



Sandstones, percentage of alxsorp- 

 tion, 14; eiifects of Baltimore fire 

 OJ7, 1 1*; fire tests, 20-2 j, 27°; 

 flame tests, 28'; locality, 14; 

 petrographic description, 14, 

 33^'"34*; company operating 

 quarry, 14; refractoriness, 6*, 7", 

 S'', 9''', 9"; order of refractoriness,. 

 aX"; use, 14 



