r36 NEW YORK STATE MUSEUM 



by the old labels to localities from which they could not possibly 

 have come. The most noticeable of these errors was found in 

 a number of '• Lower marl " fossils (now called the Navesink marl 

 bed of the Monmouth formation) which were labeled " Shark 

 river". All the formations along Shark river are of much later 

 age than the marl beds which carry the Navesink fossils. In 

 fact, only the uppermost portion of the greensand series is repre- 

 sented along this river. It is very probable that these Navesink 

 fossils (Lower marl bed of Cook) came from Monmoutli county, 

 but, inasmuch as their distribution is along the entire Lower 

 marl belt of New Jersey, it was impossible to assign any locality 

 with certainty. Fortunately duplicates of these doubtful locality 

 fossils were found, so that they were removed from the cases 

 without impairing the number of species previously represented. 

 In fact, new species were added by a re-sorting and separation 

 of material. A number of Upper Cretaceous leaves from the 

 Dakota sandstone, found stowed away in cases below, were labeled 

 and put on exhibition. These beautiful leaf impressions, so won- 

 derfully preserved in a rather coarse sandstone, are practically the 

 only forms which we have illustrating the Dakota group of 

 America. The revision of the Cretaceous collection was made in 

 accordance with the late work of Prof. W. B. Clarke and myself 

 on the greensand series of New Jersey. With the exception of the 

 Matawan, we have now representative specimens and fossils from 

 each horizon of the series. 



The Earitan formation is almost without fossils, and, since litho- 

 logic specimens have little value in a paleontologic collection, we 

 can not well represent this formation. The Matawan fossils are, 

 however, very abundant and easily obtained. 



The Tertiary collection is much larger. Many of these fossils, 

 especially the Miocene forms, came from the Smithsonian institution, 

 and were in many instances labeled in the original handwriting of 

 the celebrated American paleontologist, F. B. Meek. It was in- 

 tended to save all of these original labels, but unfortunately most 

 of them were destroyed. 



While the Tertiary collection, as a whole, is large and includes 

 specimens from a number of localities in each horizon, the most 

 needful addition is in the Miocene Gasteropoda, of which the 



