208 NOTES AND MIOTOKANDA. [lir.^'I A^^luS' 



editions and pages of the works quoted must be given. ITie essays 

 must not bear tlie name of the author, but a motto, to be repeated on 

 a sealed envelope containing the name and address. The essays be- 

 come the property of the Academy, but permission will be given to 

 take copies. They are to be sent, post-paid, to M. Ad. Quetelet, Per- 

 petual Secretary, before June 1st, 1871. 



The Histology of the Petiole in Cryptogamia forms the subject 

 of a recent lecture by M. Trecul to the French Academy of Sciences. 



The Development' of the Flower in Pinguicula. — A very able 

 memoir on this subject has been written by Professor Dickson. This 

 was very favourably noticed by the Eev. M. J. Berkeley, F.R.S., in a 

 late number of ' The Gardener's Chronicle.' 



A New Edition of Mrs. Somerville's Work on Molecular and 

 Microscopic Sciences. — In a note written from Naples, Professor 

 AUman states that a short time since he paid a visit to Mrs. Somer- 

 ville. Writing to the Botanical Society of Edinburgh, he says : — " I 

 paid a visit the other day to Mrs. Somerville, on her ninetieth birth- 

 day. She is a charming old lady ; her senses, with the exception of 

 slight failure in her hearing, are still perfect ; she can thread her 

 needle without spectacles, and is in full intellectual vigour. She is 

 engaged with a second edition of her work ' On Molecular Science.' 



The American Microscopical Society. — At the last annual meet- 

 ing of the American Microscopical Society the following officers were 

 elected : — President, Dr. J. H. Hinton ; 1st vice-president, Mr. Eobert 

 Dinwiddie ; 2nd vice-president, Mr. T. F. Harrison ; corresponding 

 secretary, Dr. S. G. Perry ; recording secretary, Dr. J. S. Latimer ; 

 treasurer, Mr. E. C. Bogert ; librarian. Dr. John Frey ; curator, Mr. 

 S. Jackson. Committee on nominations : — Dr. D. H. Goodwillie ; 

 Mr. E. A. Witthaus, Mr. J. W. S. Arnold. 



M. Mouehet's Wood -section -making Machine.— M. Mouchet 

 desires us to state that the " grande medaille d'honneur," awarded to 

 him by His Majesty the Emperor of the French, was received at the 

 " Eegional Exhibition of 1866," and not, as stated in ouf February 

 number, the late Paris Exhibition. 



An Histological Entomological Prize. — The Council of the Ento- 

 mological Society offer two prizes, of the value of five guineas each, 

 for essays of sufficient merit, drawn up from personal observation, on 

 the anatomy or economy of any insect or insects. The essays to be 

 sent in before the end of November next. 



The Microscope in Silk-Worm Culture. — M. Pasteur, who has 

 done so much in this direction, proposes this year to carry out an 

 elaborate series of experiments on the subject of silk-worm growth, 

 health, and nourishment. These experiments will be carried out on an 

 estate of the Prince Imperial, situate between the Gulf of Trieste and 

 Carnero. 



The Development of the Brachiopoda.— A very capital subject for 

 some enterprising microscopist is being investigated by Mr. E. Morse, 

 who is engaged in writing a monograph on the subject. 



