REPORT OF THE DIRECTOR I915 35 



in the northern states. It is therefore assumed that these peccaries 

 were overcome by heavy snow storms or bHzzards, as frequently 

 happens to gregarious animals, like sheep, goats and swine. The 

 specimens from near Columbus may have fallen in the direction 

 in which they were running before the storm. The Gainesville 

 specimens were found in excavating for sand in a delta knoll 

 and the numerical majority of their bones were carried away with 

 the sand for mixing concrete. As there is slight hope of complet- 

 ing these skeletons, the remains obtained have now been put on 

 exhibition in the Museum. 



List of cases and contents in hall of invertebrate fossils 



CASES NO. 



20 Synoptic collection of the New Yoi'k formations and faunas 



25 Synoptic collection (supplementary; along walls) 



12 Eurypterida 



9 Trilobites 



I Eusarcus group — restoration 



6 Cephalopods 



3 Graptolites 



1 Crinoids (others to be prepared) 



2 Starfishes 



I Starfishes, echinoids and Paropsonema 



6 Hexactinellid sponges 



II Devonian corals 



I Fossil parasites 



1 Devonian of Falkland islands 



2 Silurian and Devonian of Brazil 



I Silurian sea bottom. Black Cape, P. Que. 

 I Recent glass sponges 



103 



Added to these are 6 floor mounts and 11 wall mounts. 



Field work. From lack of funds, only about three weeks could 

 be given to field work. The investigation of the Middle and Upper 

 Ordovician shales was extended from Utica northwestward, the 

 shales overlying the Frankfort shales were studied, and for the 

 first time contacts between the Utic aand Frankfort shales, and 

 the latter and the superjacent formation, observed. This inves- 

 tigation is to be continued in the following field seasons. 



Research. The research work has consisted chiefly in the inves- 



