Record of Geology of Texas, ISBY-lSOe. 
217 
343. Roemeh, FerdijStaistd. 
Macraster, eine neue Spatangoiden-Gattung aus der Kreide von 
Texas. 
iF’eues' Jahrbiicli flir Min., Geol., und PaJ., 1888, Bd. 1, pp. 
191-195. Taf. VI. 
The specimens upon which this genus is based were collected by Mr. 
George Stolle 3 ^ 
Discussion. 
“Der Gattungscharakter der neuen Gattung worde in folgender Weise 
festzrustellen sein. 
“Macraster nov. gen. 
“Die Schale gross, gewdlbt, im Umriss hertzformig. Der Mund auf der 
flachen Unterseite nahe dem Vorderrande gelegen, quer oval, ohne voTste- 
hende Unterlippe; der After supramarginal, auf einer hinteren Abstum- 
pfungsfiache der Schale. Das 'Scheitelsehild kompakt, mit vier Genital- 
Poren, die Ambulacren petaloid, unten otfen, in Furchen gelegen. Die 
hinteren uAmbulacral-Furchen so lang wie die vorderen. Die Poren der 
Ambulacren in schmalen quer verlaufenden iSpalten oder Schlitzen. Die 
Oberflaehe der Schale mit zerstreut stehenden Kleinen Warzen bedeckt. 
Keine Fasciolen. 
“Die einzige bekanntte Art: M. Texanus .aus oberturonem Kreidemergel 
von Georgetown, in Texas.” 
See R. T. Hill “On the OccuiTence of Marcaster T exanus,” No. 207. 
344. Roesler, F. E. 
Report of F. E. Roesler, Division and Field Agent for Texas. 
Submitted with the Report of Richard J. Hinton, Special Agent in 
Charge of the Preliminary Investigation to determine the proper 
Location of Artesian Wells within the Area of the Hinety-seventh 
Meridian and East of the Foot-hills of the Rocky Mountains.) 
51st Congress, 1st Session, Senate Ex. Doc., Ho. 222, pp. 243- 
319. Washington, 1890. 
Artesian Flowin,g Wells. “West of the ninety-seventh meridian there 
are, in all, between 650 and 700 flowing wells, ranging in flow from one 
gallon to 1,000 gallons per minute, and in depth from fifteen feet to 1,852 
feet, and in cost from $25 to $7,200. The greatest number of flowing wells 
are situate in the counties of Bosque, Somervell, Tarrant, and Hood, and 
in these the average depth is from 200 to 500 feet, a few exceeding this 
depth. The average flow is between 10 and 20 gallons per minute, a limited 
number reaching 60 to 100 gallons, and a few exceeding this; some reaching 
a flow of 300 gallons per minute. The largest wells in the State are those 
at Waco, five of which jointly flow about 5,000,000 gallons per diem. All 
of the flowing wells except thirty-one are situate east of the one-hundredth 
meridian, and as a factor in irrigation at present count for little or noth- 
ing. Good, palatable water is found at eomparatively shallow depth only 
east of the ninety-ninth meridian, and north of a line drawn, say, from 
the southwest corner of Bandera county to Aransas Pass. South of this 
