394 Field Museum or Natural Histoby — Reports, Vol. V. 



placing <^*i the s|>ccimcns. PollowinK thus coll'^-'-'v. two cases o( a 

 combJn«*'' •'•"■'■tht and flat form arc devoted to i... 'i.im T Phnlmrrs 

 crj'stAl . 'in and two similar cases contain o ,: ig 



varitt;. . ' : .i:. i «r and ornamental objects carved fr ni-prpcious 



stones. FollownR these, six larjjc oblonjj cases, tl and 



two narrow, upright cases contain the meteorite collection. In the square 

 c aw* arc placed larjje, single .«qx<nmcns of the Daxns Mts., Long Island 

 and Brrnham falls, respectively, while the remaining meteorites which 

 arc exhibited arc to be disposed on pyr ' -^ ' Ives in the other 

 cases. The remainder of the hall is d i" i-»ur upright cases 



ar-'"'*<! in alcove form containing c i- of concretions and 



St,.„.. ..i, an'i ;nrrimrns illustrating glacial ; icna, weathering, etc 



Two large, . . >s from Kollcy Island and Amherst, Ohio, are 



to be installed on indi\'idual bases in opposite alcoves in connection with 

 this scries. In the next hall .south there have been placed at the east end 

 eight upright cases. These are to contain the collections illustrating 

 various rock structures, such as dikes, veins, cave formations, rock 

 markings, etc. These cases are arranged in alcove form disposed in a 

 II similar to that already described for the cases containing the 



5 •.ic mineral collection. A case devoted to large g>'ps\un crystals 



a:. . . containing a fulgurite nine feet in length arc al.so placed in this 

 hall. Following these, eight sloping-top cases are devoted to the cc^ 

 tion of s>'stematic pctrolog>'. Each specimen in these cases is mounted 

 on an individual block screwed to a pyramidal screen. The installation 

 of this collection is complete, 872 specimens being now on display. The 

 remainder of this hall extending eastward is to be devoted to the exhibi- 

 tion of the map collection, consisting of about seventy-five relief and 

 other maps, also globes and other geographic material. The maps are 

 to be cxiiibitcd on tables which are to be arranged in positions similar 

 to those of the cases which form the alcoves in other halls of the depart- 

 ment. The maps have been unpacked and partially placed, but have 

 not yet been finally installed. The following hall south contains collec- 

 tions of an economic character, chiefly of coed, petroleum and other 

 hydrocarbons, and sands, clays and soils. Of these collections, those of 

 the first group will occupy the eastern half of the hall, those of the 

 second group, the western half. The eastern half is installed according 

 to the alcove plan, similar to that adopted in the department as a 

 whole, eighteen upright cases forming nine alcoves. In these alcoves 

 and ad'-^ ■"•  '^ *^^'*m ten table and other low cases n.To n!ared, and 

 in one (i .... 1 alcove a large case containing an t of coal- 



tar products. A model of the original Rot r oil refinery- which, 



