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remains were some time ago partially brought under your notice, when I 

 sent you a drawing of a collar, or annular assemblage of petal-like scales, 

 with a stem and leaves. The stem, I think you decided, was that of a 

 calamite, and of the other parts you wished for further illustrations. 

 Since then my father and I went to Whitby, expressly to examine the 

 locality, and our examination was in some measure crowned with success. 

 The first new object we met with was the beautiful impression of a stem, 

 with large, smooth, oval cicatrices, regularly disposed, and the intervening 

 spaces filled up with rough ridges, evidently impressions of the fissures in 

 the cortical integuments.* Fearful of not being able to obtain it entire, 

 as it was only a hollow impression, and in a dreadfully hard, irony rock, 

 I took the drawing, a copy of which I have sent you (No. 1.) The 

 upper part was strongly marked with the cortical fissures, as well as the 

 bottom; but from my endeavours to take a faithful representation of the 

 one, I had not time to complete the other, as we had a considerable distance 

 to travel to our destination for the night. It appears to have been a part 

 from the centre of a large stem, as there was little or no difference in the 

 diameter at the respective ends. 



As I foresaw, the most careful efforts of my father's practised chisel 

 were only able to preserve some fragments of the cicatrices, which are now 

 in the Museum. 



No. 2 is a small collar, which we more frequently find than the large 

 ones. They differ in having, as far as I can discover in the specimens 

 found, no perforation passing through them, and have not the striated 

 interior sent some time ago. 



No. 3 is an impression of part of a collar, the scales and stalk of which 

 have been destroyed by exposure to the atmosphere and sea. It shows 

 that the form under which we find the collars has not been the perfect one, 

 but that the cavity, where the stamens and pistil ought to have been had 

 it been a flower, has been filled up with a continuous stalk. The impres- 

 sion of the scales are rather narrow, and closely attached to one another 

 at the base. 



No. 4 is a similar impression of scales, but here they have been older, 

 become broader and more widely separated from one another. 



No. 5 is a fragment of a frond of immense size, which I think you will 

 find to be a more accurate drawing than the one before sent. The leaflets 

 are long and lanceolate, broadest at the middle, or rather towards the 



* Round each of the scars there is an irregular strong line, forming a kind of 

 circle. Some smaller ones range transversely and the others longitudinally. 



