The President's Address. By Henry Woodward. 157 



In the oldest Cambrian of North America, Prof. C. D. Walcott 

 has shown the presence of some 61 so-called genera and 142 reputed 

 species, embracing Sponges, Corals, Annelids, Graptolites, Echino- 

 derma, Brachiopoda, Mollusca, lowly Crustacea, and Trilobites. 

 But, after all our labours, and strivings to reach the beginning of 

 all things, let us take comfort in this, that, like Pandora of old, we 

 still have Hope left us in the Box (or shall we say in the Bocks ?). 



Those Eozoic Pocks (see p. 146) which underlie our present 

 oldest fossiliferous strata, may yet yield to the geologist and 

 biologist in the future, an earlier and more primitive fauna and 

 flora, just as the Lower Cambrian rocks have done for us in the 

 past. 



Note. — Prof. C. D. Walcott, in his monograph on the Lower Cambrian or 

 " Olenellus Zone " of North America, gives the following list of fossils : — 



Spongim 4 gen. et 4 sp. 



Actinozoa 5 „ „ 



Worm-tracks ? . . . . 4 „ (1 „ 



Graptolitidee .. .. 2 „ 2 „ 



Echinoderma .. . . 1 „ 1 „ 



Brachiopoda .. .. 10 „ 29 „ 



" -»r n I Lamellibranchiiitii .. 3 „ 3 „ 



Mollusca - /-. , j ,. i.. 



[Gasteropoda . . .. (> ., 13 „ 



Pteropuda? (doubtful) 4 „ 15 „ 



— 39 gen. et 82 sp. 

 Crustacea — 



Isoxys 1 gen. et 1 sp. 



Ostraroda 3 „ <> ,, 



Protocaris 1 ,, 1 „ 



— 5 gen. et 8 sp. 

 Trilobita— 



Aqnostus 1 gen. et 3 sp. 



Mkrortiscu* .. .. 1 „ 8 „ 



Olenellus 1 „ 4 „ 



Mesonacis 1 „ 2 „ 



Hohnia 1 „ 1 „ 



Olenoides .. .. 1 „ 5 „ 



Zacanthoides .. .. I „ 2 „ 



Iiathynotus .. 1 ,. 1 „ 



Avalonia 1 „ 1 „ 



Conocoryphe .. . . 1 „ 2 „ 



Ptychoparia .. .. 1 „ 8 „ 



Crepicephalu* .. .. 1 ,, 2 „ 



Oryctocephalus ■■ 1 „ 1 „ 



Anomocare .. .. 1 „ 1 „ 



Agraulos 1 „ 3 ,, 



Protypus 1 „ 3 „ 



Solenopleura .. .. 1" „ 5 „ 



- — — — 17 gen. ct 52 sp. 



Nine groups are represented, comprising .. .. Gl gen. et 142 sp. 



