3^4 



iP'ield Xotes. 



Fragilaria muiabilis (\Vm. Sin.) 



Gnin I, 3. 

 Fragilaria UnuicoJUs Heib var. 



intermedia 3. 

 Deniicula tenuis Kutz. i. 

 Diaioma vuJgare Bory i, 3, 4. 

 Diaioma elongaium Ag. i, 2, 3. 

 Meridion circular e Ag. i. 

 Surirella hiseriaia Breb. 4. 

 Surirella elegans Ehr. 4. 

 Surirella ovalis Breb. var. minida 4. 

 Surirella ovalis var. ovata 2. 

 Campylodiscus Hibernicus Ehr. 3. 



Nitzschia Tryhlionella Hantzsch 4. 

 Nitzschia Tryhlionella var. Lci't 



densis 4. 

 Nitzschia dubia Wm. Sm. 4. 

 Nitzschia apiculata (Greg) Grun 4. 

 Nitzschia sigmoidea (Ehr.)] Wm. 



Sm. I, 3, 4. 

 Nitzschia amphibia Grun i. 

 Nitzschia thermalis (Kutz) Grun i. 

 Nitzschia vitrea Norman var. recta i. 

 Melosira varians Ag. i, 2, 3, 4. 

 Melosira arenaria Moore i, 3. 



H. E. W. 







REPTILIAN FOOTPRINTS IN THE LOWER 

 OOLITES AT SALTVVICK. 



Professor PERCY F. KENDALL, M.Sc, F.G.S. 



The interesting note in the ' Naturalist ' on Mr. Brodrick's find 

 of Reptilian Footprints at Saltwick mentioned the fact that the 

 exact horizon at which they occurred had not been ascertained. 

 The excursion of the Yorkshire Geological Society to the coast 

 on the 25th to 28th September, afforded an opportunity for 

 investigating the matter. Many footprints were observed in 

 association with ripple-marks, sun-cracks and rain-pittings in a 

 pale sandstone readily identifiable as part of a recent fall from 

 a bed of 'freestone,' at a rough estimate, about 70 or 80 feet 

 above the Dogger. If the estimate is correct, the bed is some 

 distance below the Eller Beck Bed, and, therefore, in the lower 

 part of the Lower Estuarine Beds. It may be worth mentioning 

 that some of the slabs yielded plants referable to Thuytes, and a 

 single specimen of Unio w^as also found. 







FIELD NOTES. 



GEOLOGY. 



Coast Erosion at Dimlington. — On a visit of the Hull 

 Geological Society to the coast on July iSth, it was noticed 

 that the remains of the wall on Dimhngton high-land were just 

 twelve 3^ards distant. In 1905 the wall was se\'enteen j^ards 

 distant, and in 1833 it was 147 yards away. As the cliffs are 

 considerably over 100 feet in height at this point, it mil be 

 seen that the amount of land washed awa}' is enormous. — T. 

 Sheppard, Hull. 



!saturalist, 



