RAIN-MARKS IN MARINE ALLUVIUM. 



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Pig. 4. 





Fig. 1.— Impressions of Rain-Drops. — Modern.— liny of I'undy. 

 „ 2. — Impressions r Sain Drops.— I arfeoniferous,— TaUnagouehe. 

 „ 3. — ImpreuioDB of Continued Rata. Carboniferous. 



„ 4. — Shrinkage Cracks and Itain Marks.— Carbonifl tODB. - Reduced in sire. 

 „ 5.— Cast ot" Hill Harks.— Carboniferous.— Reduced in size. 



