MODE II. KONITS. 



pierre de rocke is as hard as the liais> but porous 

 and full of shells; thickness of the beds about 

 two feet. The lambourde is a tender stone with 

 a coarse grain ; the beds being about three feet. 

 These three qualities, and others which we omit, 

 are often found in the same quarry. 



" The quarries which furnish the best build- 

 ing stone used at Paris, are those of St. Norn in 

 the park of Versailles; La Chaussee, near St. 

 Germain en Lay e; Poissy; Nanterre; the three 

 last yielding stones almost as beautiful as the 

 liais $ of Saillancourt, near Pontoise; of Con- 

 flans Ste. Honorine; this quarry yields the finest 

 tender stones, sometimes seven or eight feet in 

 thickness; of St. Nicolas, near Senlis, which is 

 a liais ; of St. Leu and Trossy, department of 

 Oise, which is a soft stone". 



" The soft kinds are sawed dry, the saw hav- 

 ing teeth as that used for timber. The hard 

 kinds are divided by a saw without teeth, by 

 the means of water and pounded sandstone. 

 But that they may not decompose in the air, 

 they must be placed according to their original 

 beds, for very few will last in the opposite po- 

 sition. Several porous and tender kinds are sub- 

 ject to split by frost. The weight varies accord- 

 ing to their quality; thus the hard stone of 



