4 PUBLICATIONS OF SPENCER F. BAIRD. 



1849. Baird, Spencer F.— CoutiDued. 



Ambystoma mavortia, Baird, n. s. 



New Mexico. Dr. Wizlizenus. 

 Ambyttoma episcopus, Baird, n. s 



Kemper County, Miss. Clinton Lloyd. 

 Pseudotriton montanun, Baird, n. 8. 



South Mountain, near Carlisle, Pa. S. F. Baird. 

 Ple»tiodon anthracintis, Baird, n. a 



South Mountain, near Carlisle, Pa. S. F. Baird. 



12. 



1850. Baird, Spencer F. Descriptious of four new species of North American Sala- 

 manders, and one new species of Scink. <^Ame7: Journ. Sci. and Arts, ix, 2d 

 eer., Jan., 1850, pp. 137-139. 



The memoir in the Journal of the Academy of Natural Sciences, (2) i, pp. 292-294, is given 

 in full, prefixed by a commendatory notice by the editor of the Journal, of this paper and 

 the one on the Tailed Batrachians. 



13. 



1850. Baird, Spencer F. On the Bone Caves of Pennsylvania. <Proc. Amcr. Assoc. 

 Adv. ScL, ii, 1850, pp. 352-355. (Cambridge Meeting, Aug., 1849.) Read 

 Aug. 20, 1849. 

 Explorations of a cave near Carlisle, Pa., and two others in Pennsylvania. 



14. 



1850. Baird, Spencer F. On the Urodelian Batrachians. <:^Proc. Amer. Assoc. Adv. 

 Sci., ii, 1850, p. 402. 



A verbal abstract of this paper was presented to the Association and only the title was 

 published. 



14a. 



1850. [Baird, Spencer F.] Registry of Periodical Phenomena. 



(Printed on a half-sheet of thin, blue letter-paper.) Published by the Smithsonian Institu- 

 tion. 



"The Smithsonian Institution, being desirous of obtaining information ■with regard to the 

 periodical phenomena of animal and vegetable life in North America, respectfully invitee 

 all persons who may have it in their power to record their observations and to transmit them 

 to the Institution. The points to which particular attention should be directed are the first 

 appearance of leaves and of flowers in plants ; the dates of appearance and disappearance of 

 migratory or hybernating animals — Mammalia, Birds, Reptiles, Fishes, Insects, &c. ; the time 

 of nesting of Birds ; ot moulting of and littering of Mammalia ; of utterance of characteristic 

 cries among Boptiles and Insects, and anything else which may bo deemed noteworthy. 



"A list of plants is appended to which ptirticulsir reference should bo h.ad in making obser- 

 vations. It has been prepared from materials furnished by Dr. John Toirey and others, and 

 win be found to contain many species distributed throughout the United States, together with 

 an indigenous number to, or cultivated in Europe. For the present, attention may be paid alone 

 to the time of flowering of these species, this period in all cases being indicated by the first 

 appearance of the anther in the expanding flower. 



"The Smithsonian Institution is also desirous of obtaining detailed list of all the animals and 

 plants of any locality throughout this continent. These, when practicable, should consist 

 of the scientific names as well as those in common use; but when the former are nnknown, 

 the latter alone may bo employed. It is in contemplation to use the information thus 

 gathered in construction of a series of species, showing the geogiaphical distribution of the 

 animal and vegetable kingdoms of North America." 



15. 



1850. Baird, Spencer F. General Directions for Collecting and Preserving Objects 

 of Natural History. 



Published by the Smithsonian Institution. Printed on a half-sheet of blue letter-paper. 

 On the back a list of " special desiderata." 



A letter from the Quartermaster-General, dated March 31, 1848, granting facilities for trans- 

 portation in accordance with request of Professor Baird. 



