- Normal position of the larvæ of Culex and Anopheles in the water
- A Bear standing on his Head
- A flesh fly
- A Gray Parrot on His Perch. Waiting to Speak His Piece
- A Hooded Peregrine Falcon. Its eyes are covered by the hood until the game is in sight
- A medieval method of combating the plague. The persecution of the anointers in Milan in 1630
- A millipede
- A Pair of Angora Goats
- A sheep taking in the view
- A solpugid (Eremobates cinerea)
- A true scorpion
- A tumbling Ape
- A whip-scorpion
- A wolf
- Aëdes calopus; larva
- Ailuropus Melanoleucus
- An American tarantula
- An Old Monarch
- Anopheles quadrimaculatus mosquito
- Argus persicus. Capitulum of male
- Auchmeromyia luteola
- Beak of hemipteron
- Bear and Monkey
- Bobcat
- Calliphora erythrocephala
- Chrysomyia macellaria
- Comfort
- Conorhinus abdominalis
- Conorhinus sanguisugus
- Cordylobia anthropophaga
- Cross section of the larva of the browntail moth showing the tubercles bearing the poison hairs
- Culex sollicitans. Female
- Culicoides guttipennis - (a) adult, (×15) (b) head of same (c) larva (d) head (e) pupa
- Dancing Mania
- Deerhound
- Demodex folliculorum
- Dermanyssus gallinæ, female
- Diagram of a longitudinal section of a mosquito
- Dipylidium caninum. Rostrum evaginated and invaginated
- Dipylidium caninum. The double pored tapeworm of the dog
- Dog flea
- Eagle
- Echidnophaga gallinacea
- Eggs of Anopheles
- Elaphurus Davidianus
- Electric Eel
- Epithelium underlying poison hairs of the larva of the browntail moth
- Epithelium underlying poison hairs of the larva of the browntail moth (larger scale)
- Harvest mites. (Larvæ of Trombidium)
- Head and pronotum of (a) dog flea; (b) of cat flea; (c) of hen flea (d) Nycteridiphilus (Ischnopsyllus) hexactenus
- Head of a spider showing poison gland (c) and its relation to the chelicera (a)
- Ixodes ricinus; male, ventral aspect
- Larva of Anopheles
- Larva of Fannia scalaris
- Larva of Simulium
- Left hand stigmata of the larvæ of muscoidea
- Left spiracle of nymph of Argas persicus
- Life cycle of the malarial parasite
- Linguatula. (a) larva; (enlarged). (b) adult; (natural size)
- Lucilia cæsar