State Museum of Natural History. 15 



exhibit of the characteristic markings of the bed surfaces in this 

 Triassic sandstone, as well as an instructive addition, illustrating 

 the more common conditions attendant upon the deposition of 

 strata. 



In order to make room for the increase of geological and 

 palseontological material, a third table case has been set up on the 

 third floor. It is shallow, and the heavy sash frames shut out some 

 light in the poorest lighted part of the room, but it serves tempo- 

 rarily to hold the Rosenbusch collection of massive rocks and 

 some European Mesozoic and Tertiary invertebrate fossils. The 

 Rosenbusch collection consists of 500 specimens, trimmed to 

 uniform size and numbered in conformity with the typical collec- 

 tion of Professor Rosenbusch and designated by the names, which 

 he now uses in his " Mikroskopische Physiographie der Massige 

 Gesteinen." It will serve as a valuable aid in the study of the 

 crystalline rocks, whose outcrops form so large an area of our 

 State, as also an important illustrative collection to teachers and 

 students of petrography. 



The iron ores collected in 1888, and in part obtained through 

 the generous assistance of mine owners and managers, have been 

 arranged and mounted with appropriate labels, in a wall case 

 against the front wall of the room on the third floor. There are 

 140 specimens in this collection. Want of space made it neces- 

 sary to select the more characteristic ores and from the larger 

 mines in the several iron-ore districts of the State. The remainder 

 of the material, thus gathered, will be packed in drawers m the 

 State Hall, According to the present arrangement in this story, 

 the minerals of the State, the collection of brines, salt and related 

 products of the salt industry and the iron ores occupy the wall 

 cases of the western half of the room, and in consecutive order. 



Zoological Department. 

 The work of rearranging the Zoological collections has been 

 continued during the year. The shelving in three wall cases has 

 been altered to give more space for the exhibition of the alcoholic 

 collection, the sponges, the corals and the reptiles and amphib- 

 ians. A raised platform has been put in the southern section of 

 the east side wall case. The floor cases and table cases remain 

 in the same position as they had last year. A female kangaroo, 

 mounted with young in pouch, purchased from Ward of Rochester, 



