R. T. Young

195 public-domain plates in the archive

• Sorex vagrans vagrans 12 Jul 1897
• Crocidura russula russula 24 Jun 1899
• Sorex vagrans vagrans 20 Jun 1897
• Tamiasciurus douglasii douglasii 27 May 1897
• Peromyscus maniculatus nebrascensis 11 Jul 1900
• Tamias minimus operarius 17 Jul 1900
• Microtus pennsylvanicus uligocola 11 Jul 1900
• Peromyscus keeni oreas 20 May 1897
• Peromyscus leucopus texanus 11 May 1900
• Myodes gapperi occidentalis 23 May 1897
• Myodes gapperi galei 19 Sep 1900
• Peromyscus keeni oreas 17 Jul 1897
• Apodemus sylvaticus 8 Jul 1899
• Microtus longicaudus macrurus 22 Jul 1897
• Sorex trowbridgii trowbridgii 1 Jun 1897
• Peromyscus keeni oreas 18 Jun 1897
• Sorex vagrans vagrans 31 Aug 1897
• Sorex vagrans vagrans 28 Jun 1897
• Peromyscus maniculatus nebrascensis 1 Jul 1900
• Microtus pennsylvanicus acadicus 27 Oct 1897
• Tamias amoenus albiventris 25 Aug 1897
• Myodes gapperi occidentalis 29 May 1897
• Arvicola sapidus 27 Jun 1899
• Sorex minutus 8 Jul 1899
• Sorex bendirii albiventer 3 Jun 1897
• Rattus norvegicus 28 Jun 1899
• Peromyscus keeni oreas 9 Jul 1897
• Sorex vagrans vagrans 20 May 1897
• Myodes gapperi saturatus 5 Oct 1897
• Zapus princeps princeps 18 Aug 1900
• Sorex trowbridgii trowbridgii 27 Jun 1897
• Myodes gapperi occidentalis 28 May 1897
• Sorex vagrans vagrans 16 Jun 1897
• Crocidura russula russula 23 Jun 1899
• Callospermophilus lateralis castanurus 3 May 1897
• Apodemus sylvaticus 23 Jun 1899
• Talpa aquitania 29 Jun 1899
• Peromyscus maniculatus sonoriensis 27 Apr 1897
• Sorex monticola setosus 26 May 1897
• Microtus pennsylvanicus uligocola 31 Aug 1900
• Tamiasciurus douglasii mollipilosus 30 Jun 1897
• Peromyscus keeni oreas 6 Jul 1897
• Neotoma mexicana fallax 24 Aug 1900
• Microtus savii 29 Jun 1899
• Peromyscus keeni oreas 12 Jun 1897
• Peromyscus maniculatus rufinus 6 Aug 1904
• Sorex vagrans vagrans 9 Sep 1897
• Myodes gapperi occidentalis 7 Jul 1897
• Sorex monticola setosus 7 Aug 1897
• Eptesicus serotinus serotinus 28 Mar 1897
• Peromyscus maniculatus artemisiae 16 Sep 1897
• Sorex cinereus cinereus 8 Jan 1902
• Microtus pennsylvanicus acadicus 15 Nov 1897
• Apodemus sylvaticus 24 Jun 1899
• Microtus longicaudus longicaudus 7 Oct 1897
• Microtus longicaudus longicaudus 18 Sep 1900
• Microtus richardsoni macropus 29 Aug 1897
• Sorex palustris navigator 11 Aug 1897
• Sorex bendirii albiventer 9 Jun 1897
• Peromyscus keeni oreas 21 Jul 1897
• Thomomys talpoides wallowa 16 Sep 1897
• Arvicola sapidus 6 Jul 1899
• Myotis myotis Jun 1899
• Sorex vagrans vagrans 28 May 1897
• Microtus oregoni oregoni 31 May 1897
• Sorex cinereus cinereus 27 Oct 1897
• Otospermophilus variegatus grammurus 6 Jul 1900
• Apodemus sylvaticus 23 Jun 1899
• Peromyscus nasutus nasutus 23 Aug 1900
• Sorex vagrans vagrans 4 Jun 1897
• Fratercula cirrhata 21 Jun 1897
• Fratercula cirrhata 21 Jun 1897
• Aplodontia rufa rufa 24 Jul 1897
• Myodes glareolus 4 Jul 1899
• Neomys fodiens 8 Jul 1899
• Sorex coronatus 8 Jul 1899
• Eptesicus fuscus pallidus 22 Jul 1903
• Bonasa umbellus phaios Aldrich & Friedmann 9 Oct 1897
• Myodes glareolus 25 Jun 1899
• Perognathus parvus olivaceus 27 Apr 1897
• Peromyscus maniculatus rufinus 18 Sep 1900
• Peromyscus maniculatus sonoriensis 29 Apr 1897
• Urocitellus columbianus ruficaudus 6 Sep 1897
• Sorex palustris navigator 5 May 1897
• Ochotona princeps taylori 12 Aug 1897
• Sorex cinereus cinereus 1 Nov 1897
• Microtus pennsylvanicus uligocola 31 Aug 1900
• Peromyscus pectoralis laceianus 24 Jun 1900
• Apodemus sylvaticus 23 Jun 1899
• Peromyscus keeni oreas 20 May 1897
• Peromyscus keeni oreas 21 Jul 1897
• Lepus americanus washingtonii 14 Sep 1897
• Apodemus sylvaticus 26 Jun 1899
• Peromyscus keeni oreas 9 Jul 1897
• Tamias townsendii townsendii 27 May 1897
• Thomomys talpoides wallowa 6 Sep 1897
• Myodes gapperi occidentalis 29 May 1897
• Peromyscus keeni oreas 12 May 1897
• Myodes gapperi occidentalis 25 May 1897
• Sorex monticola setosus 19 Jul 1897
• Lynx rufus fasciatus Oct 1896
• Myodes gapperi ochraceus 10 Nov 1897
• Microtus pennsylvanicus uligocola 27 Aug 1900
• Peromyscus keeni oreas 12 May 1897
• Phenacomys intermedius intermedius 16 Sep 1897
• Tamias amoenus albiventris 27 Aug 1897
• Callospermophilus lateralis connectens 26 Aug 1897
• Myodes gapperi occidentalis 1 Jun 1897
• Myodes gapperi occidentalis 29 May 1897
• Myodes gapperi occidentalis 28 May 1897
• Peromyscus leucopus leucopus 11 Mar 1897
• Apodemus sylvaticus 5 Jul 1899
• Crocidura russula russula 24 Jun 1899
• Arvicola sapidus 4 Jul 1899
• Peromyscus keeni oreas 21 Jul 1897
• Peromyscus keeni oreas 7 Aug 1897
• Peromyscus keeni oreas 20 Jul 1897
• Perognathus parvus olivaceus 26 Apr 1897
• Sorex vagrans vagrans 18 Jul 1897
• Microtus pennsylvanicus acadicus 27 Oct 1897
• Sorex cinereus cinereus 27 Oct 1897
• Crocidura russula russula 26 Jun 1899
• Sorex vagrans vagrans 30 Aug 1897
• Ochotona princeps taylori 10 Aug 1897
• Microtus oregoni oregoni 20 Jul 1897
• Perognathus parvus olivaceus 24 Apr 1897
• Sorex monticola obscurus 3 Sep 1897
• Peromyscus maniculatus sonoriensis 29 Apr 1897
• Microtus pennsylvanicus acadicus 27 Oct 1897
• Neovison vison energumenos 4 Jul 1897
• Mustela frenata effera 6 Sep 1897
• Neurotrichus gibbsii minor 28 May 1897
• Sorex cinereus cinereus 10 Nov 1897
• Zapus trinotatus trinotatus 8 Sep 1897
• Myodes gapperi occidentalis 6 Jul 1897
• Myodes gapperi occidentalis 2 Jun 1897
• Peromyscus leucopus leucopus 12 Apr 1897
• Peromyscus keeni oreas 18 Jul 1897
• Tamiasciurus hudsonicus streatori 2 Oct 1897
• Neotoma cinerea occidentalis 1 Oct 1897
• Microtus pennsylvanicus acadicus 27 Oct 1897
• Peromyscus leucopus leucopus Mar 1897
• Microtus pennsylvanicus acadicus 28 Oct 1897
• Myodes gapperi cascadensis 7 Aug 1897
• Sorex monticola setosus 11 Aug 1897
• Callospermophilus saturatus 12 Aug 1897
• Microtus pennsylvanicus acadicus 28 Oct 1897
• Ochotona princeps princeps 5 Sep 1897
• Microtus oregoni oregoni 13 Jun 1897
• Tamias amoenus albiventris 6 Sep 1897
• Peromyscus pectoralis laceianus 20 Jan 1900
• Ochotona princeps taylori 15 Sep 1897
• Peromyscus maniculatus artemisiae 21 Sep 1897
• Peromyscus leucopus leucopus 14 Apr 1897
• Ochotona princeps princeps 6 Oct 1897
• Tamiasciurus hudsonicus richardsoni 1 Sep 1897
• Onychomys leucogaster arcticeps 31 Aug 1904
• Callospermophilus lateralis connectens 25 Aug 1897
• Apodemus sylvaticus 8 Jul 1899
• Sorex palustris navigator 17 Aug 1900
• Peromyscus maniculatus rufinus 8 Sep 1900
• Peromyscus nasutus nasutus 24 Aug 1900
• Sorex cinereus cinereus 11 Jul 1900
• Sorex vagrans vagrans 18 Jul 1897
• Tamias townsendii townsendii 30 Jun 1897
• Sorex monticola setosus 22 Jul 1897
• Sorex cinereus cinereus 3 Aug 1904
• Microtus richardsoni macropus 31 Aug 1897
• Peromyscus maniculatus rufinus 5 May 1897
• Sorex vagrans vagrans 27 Jun 1897
• Neotoma cinerea occidentalis 25 Sep 1897
• Myodes gapperi occidentalis 30 May 1897
• Sorex monticola setosus 6 Jul 1897
• Sorex coronatus 7 Jul 1899
• Tamias ruficaudus simulans 30 Sep 1897
• Peromyscus keeni oreas 14 May 1897
• Microtus montanus nanus 15 Sep 1897
• Aplodontia rufa rufa 24 Jul 1897
• Tamias quadrivittatus 24 Jun 1900
• Sorex vagrans vagrans 26 May 1897
• Microtus montanus nanus 8 Sep 1897
• Tamias ruficaudus simulans 30 Sep 1897
• Sorex monticola setosus 19 May 1897
• Apodemus sylvaticus 5 Jul 1899
• Sylvilagus nuttallii pinetis 25 Jul 1900
• Microtus oregoni oregoni 20 Jul 1897
• Lepus americanus washingtonii 22 Jul 1897
• Peromyscus maniculatus artemisiae 1 Oct 1897
• Peromyscus maniculatus artemisiae 29 Aug 1897
• Microtus pennsylvanicus acadicus 18 Nov 1897
• Sorex vagrans vagrans 3 Oct 1897
• Myodes gapperi galei 19 Sep 1900
• Microtus pennsylvanicus acadicus 27 Oct 1897
• Microtus pennsylvanicus acadicus 27 Oct 1897
• Peromyscus maniculatus sonoriensis 25 Apr 1897