Thomas Pennant has delayed writing to Linnaeus. For a long time he has expected in vain to hear something about the gift that Linnaeus had promised him and the box that he had sent Linnaeus [Pennant to Linnaeus, 24 March 1765{L2019}].
He is therefore waiting for a list from Linnaeus and the gift he has been promised. He asks Linnaeus also to send Echini from the Baltic sea. In return Pennant will send Echini from the Britannic Ocean.
Edward Lhwyd’s Lithophylacii Britannici ichnographia is now for sale. Pennant will buy it for Linnaeus. As soon as he has received Linnaeus’s gift, he will send it to Linnaeus as a token of his friendship. The book is very rare and expensive.
Pennant corrects his description of the English Pediculus marinus which he has already sent Linnaeus. It is a new animal that should be named a second species of Mus marina.
Pennant recently received a collection of marine plants from Norway. On one of the branches there was an anomalous Concha of genus Terebratula striata. There is a description and a drawing.
The orthoceratite that Pennant has seen in the belemnite and which are called alveoli by Lhwyd are occluded in the belemnite. There is a drawing by Pennant that shows the occlusion.
In his first letter, [Linnaeus to Pennant, 21 November 1755{L1973}], Linnaeus had written that he was busy with the illustrations of Pennant’s crystals. Pennant therefore makes drawings of eight crystals, for example, crystals from Bologna, Bergamo, Virginia, and Cornubia.
P.S. Pennant would be very grateful if Linnaeus could send him Stella marina arborescens or Caput-medusae.
There are illustrations of crystals.